700r4 4x4 transmission - This remanufactured 700R4 Transmission comes with a matching torque converter, ready to install and do burnouts in the name of freedom! 3yr Warranty Fast & Easy Core Return We also have the option to purchase performance upgrades and custom stalls for your 700R4 torque converter. If you are interested in performance torque converter upgrades ...

 
You carry the most precise and updated parts to build the perfect 700R4 and the 4L60E, 4L65E, 4L70E. This includes the Smart-Tech Input drum one of my favorites and the Zip kits for a well-built bullet proof transmission. Thank you guys for supplying awesome quality performance parts. F. Gonzalez. What nfl week is it

Drive Train. 4×4, RWD. Chevrolet C/K TRUCK 1983-1992 Rebuilt Transmission 700R4. …You carry the most precise and updated parts to build the perfect 700R4 and the 4L60E, 4L65E, 4L70E. This includes the Smart-Tech Input drum one of my favorites and the Zip kits for a well-built bullet proof transmission. Thank you guys for supplying awesome quality performance parts. F. Gonzalez Medicine Matters Sharing successes, challenges and daily happenings in the Department of Medicine ARTICLE: Whole Blood Transfusion for Severe Malarial Anemia in a High Plasmodium f...29 Sept 2009 ... Monster Transmissions, 700R4 Transmission Swap into Chevy Truck, Monster 700R4. http://www.monstertransmissions.com, Call Toll Free at ...There was even a 700R4 4x4 transmission in use behind various pickups and SUVs like the Suburban, Blazer, S10, and more. Luckily, there is loads of aftermarket support for this transmission, including rebuild kits, shift kits, pumps, torque converters, gears, governors, input and output shafts, external coolers , automatic transmission fluid ... 15 Oct 2018 ... Level 3 700r4 by Performabuilt Transmission.A Re-manufactured 700R4 Transmission. A properly Re-Manufactured transmission will have all the OE manufacturers specified updates and enhancements necessary to ensure the proper function and longevity of the transmission for years to come. Assembly should take place in a clean dust free environment, just as it was from the OE manufacturer.1 day ago · 2 Speed Transmission. 1962-1973. GM Turbo 200 and 200C: 3 Speed Transmission. 1976-1987. GM Turbo 2004R (2004R Transmission) Overdrive Transmission. 1981-1990. GM Turbo 350 and 350C (TH350 Transmission) 3 Speed Transmission. 1969-1986. GM Turbo 400 TH400 Transmission 3 Speed Transmission. 1965 and Newer. GM …Turbo 350 & 700R4 Transmission 4x4 adapter to 208 or 241 Transfer case 14038663. Opens in a new window or tab. Pre-Owned. $250.00. tntchief58 (873) 100%. or Best Offer Dec 27, 2023 · Dec 27, 2023 The 700R4 transmission from General Motors continues to be a reliable and sought-after automatic gearbox more than 40 years after its introduction. This transmission is part of the Turbo-Hydramatic series and also known as: 700R4, 4L60, 700-R4, TH700-R4, MD8, THM700R4, THM700-R4. 700R4 Rebuild Kit TH700R4 Master Overhaul Banner Box Set GM 4L60 700-R4 Automatic Transmission 700R4 GM Performance Transmission - Work Horse 450hp/400tq. Price: $2,798.60. Give Us A Call 800-708-0087. Custom Built Monster 700R4 Transmission Heavy Duty 4x4 4WD with Transmission Fluid. $2,993.75 $2,399.00. Sale. 19 Apr 2017 ... 700R4 transmission assembly.Flexplates/Flywheels. Tech Center. Transmission & Converter Recommendation. Part Selector. Trans/TC Recommendation. Ashland, MS 38603. 1-888-776-9824. Leading provider of high performance automatic transmissions, torque converters and drivetrain components for race, street/strip, hot rod, street rod and towing.Oct 15, 2012 · TCI's rendition (PN 376600) universally works on all 700-R4/4L60 (non-E) transmissions by rewiring the solenoid inside the trans. Externally, all it needs is a 12-volt source and an engine-vacuum ...700R4 1987-1992 (4L60) 4X4 TRANSMISSION 5.7L 5.0L 4.3L. $ 2,299.99. Before any …700R4 1987-1992 4X4/AWD REMANUFACTURED TRANSMISSION 4L60 WARRANTY MD8 AUXILIARY. Remanufactured. $2,549.99. shiftritetransmissions (16,690) 99.1%. Buy It Now. Free shipping. Dec 30, 2012 · TCI 371402 Maximizer 4x4 700R4 Transmission (Heavy DutyFour-Wheel Drive RV Version) 1 offer from $3,774.94. Shift Rite Transmissions replacement for 1987-1992 700R4 4X4 AUXILIARY TRANSMISSION …Are you looking for the latest Jasper Transmission price list? If so, you’ve come to the right place. Jasper Transmissions is one of the leading manufacturers of high-quality trans...The 700R4 is a great transmission with a low first gear (3.06:1) and a desirable …Mar 3, 2009 · 1586 posts · Joined 2008. #7 · Mar 4, 2009. I run a 6.0L in my scrambler with a 700R4 and an atlas and I have no complaints. We switched the electric controlled throttle body to a manual. Everythings worked good. Scrambler - 6.0L, auto, atlas, 60's, 42in STICKY boggers. Save.Drive Shaft. If your original TH350 came with a 6-inch tail shaft, you'll have to cut the drive shaft by 3 inches. If your old transmission had a 9-inch tail shaft, then the drive shaft should fit. The 700R4's drive shaft yoke is identical to the TH350's, so your old yoke should work nicely with the new transmission.Jan 6, 2018 · Both transmissions use the same exact gear ratios with a final overdrive of .7:1, which is a 30% overdrive. This makes either of them a fantastic replacement for the TH350 and TH400 transmissions. 700r4 and 4L60E Gear Ratios: First- 3.06; Second- 1.62; Third- 1.00; Fourth- 0.70; Reverse-2.29 . 700R4 and 4L60E Differences 700R4 Transmission Recommendations. Experts highly recommend …This remanufactured 700R4 Transmission comes with a matching torque converter, ready to install and do burnouts in the name of freedom! 3yr Warranty Fast & Easy Core Return We also have the option to purchase performance upgrades and custom stalls for your 700R4 torque converter. If you are interested in performance torque converter upgrades ...When it comes to transmission repair, finding a reliable and trustworthy service provider is crucial. With so many options available, it can be overwhelming to choose the right one...700R4 - Shift Rite Transmissions Remanufactured 700R4 Transmission Shop by Category Transmissions | Torque Converters | Transmission Parts | Transfer Cases | All A Transmission and reputation you can …Sep 5, 2018 · The Turbo 400’s imposing demeanor is reflective of its brute ruggedness. There’s a slight weight gain with the 700-R4, which tips the scales at 155 pounds versus the 400’s 134. However, both ...There are more BitTorrent clients than we could possibly compare, but some of the most popular—and best—have been under the spotlight lately for sleazy ads and bad behavior. It’s t...Automatic Transmission, Forward Shift Pattern, Automatic, Manual Valve Body, Chevy, …Servo Piston Kit Assembly Red Cover & Snap Ring High Performance For Corvette Servo 700R4 4L65E 4L70E 4L60E Transmission UPGRADED 1982-2014. 5.0 out of 5 stars. 3. $42.99 $ 42. 99. 11% coupon applied at checkout Save 11% with coupon. FREE delivery Fri, Feb 9 . Only 14 left in stock - order soon.Oct 26, 2006 · Next is the difference is the tail housing and the output shaft. the 4x4 uses. a short output shaft and an adapter. You can use a 2wd tranny but it has to. be torn completely down and the shaft changed, then you have to get the. appropriate adapter. mon·grel Pronunciation Key (mnggrl, mng-) n. 1. A dog of mixed or undetermined breed. Jan 18, 2024 · 700r4 1987-1992 (4l60) 4x4 transmission 5.7l 5.0l 4.3l. Transmission transmissions4l60e transmission rebuild manuals (700r4) Transmission 2wd chevy case performance high 4x4 4wd 1pc super race duty monster transmissions monstertransmission parts truck chevrolet gm remanufacturedChevy zr2 classified tranny.Automatic Transmission, Remanufactured, Forward Shift Pattern, Automatic/Manual Valve Body, Chevy, TH350, Each ... TCI Maximizer 4x4 Transmissions 371400. TCI Maximizer 4x4 Transmissions 371400 Automatic Transmission, Remanufactured, Forward Shift Pattern, Automatic Valve Body, Chevy, 700R4, 4WD, Each. Part Number: TCI-371400. 4.5 out of …5 days ago · The PerformaBuilt Extreme 4X4 700R4. A Core is Required to Build this Transmission. Our Extreme 4X4 Series is ideal for rock and mud crawling. This series is very similar to our Heavy Hauler, except it’s built …The PerformaBuilt Extreme 4X4 700R4. Our Extreme 4X4 Series is ideal for rock and mud crawling. This series is very similar to our Heavy Hauler, except it’s built with climbing and spinning in mind. It has slightly more aggressive shifts and more punch built in. It is ready to head to the mountains or play in the bog – your choice. Psittacosis is caused by infection. psittacosis Synonyms: Chlamydia psittaci infection, ornithosis, parrot fever, chlamydiosis. Try our Symptom Checker Got any other symptoms? Try ...Dec 29, 2023 · 4R55E 4R44E Ford Ranger, Explorer 4x4 Transmission 2-Yr Warranty Free Converter (#225490085037) u***u (64) - Feedback left by buyer u***u (64). ... See More Details about "700R4 Chevy GM Transmission 4x4 Output Shaft Kwik Ship" Return to top. More to explore : Outboard Conversion Kits,Chevy 700r4 4x4 transmission - Used Cars. Chevy 700r4 4x4 transmission for Sale ( Price from $10995.00 to $46900.00) 6-25 of 31 cars. Sort by. Date (recent) Price(highest first) Price(lowest first) On page. 20. 40 60. 1972 Chevrolet Pickup K20 4WD 454 Show Truck. Des Moines, IA 50309, USADenmark's push to kill the country's farmed mink over fears they will spread a new coronavirus mutation is set to ripple through the global fur industry. Denmark’s push to kill mil...15 Oct 2018 ... Level 3 700r4 by Performabuilt Transmission.When used with a TCI® Heavy-Duty Towing torque converter, you can be sure the transmission package is tailored to provide long, dependable service and maximum fuel economy. The optional low gear package offered with each of our RV units is a great addition for trucks pulling heavy loads. The Maximizer™ 4x4 transmissions bring …Feb 9, 2017 · 700R4 speedometer not working. The 700R4 uses both a traditional mechanical speedometer cable, like you might find in an older muscle car. Alternatively, they also used a variable speed sensor. This sensor is often abbreviated “VSS”. The first thing you’ll need to know is which type of speed sensor you have. 13 May 2008 ... I have a 85 chevy truck 4x4 with a 700r4 transmission that will not shift out of first gear (reverse works good) Can - Answered by a ...2 days ago · CALL 800-708-0087, Office Hours are Monday-Friday, 9:00am-6:00pm EST. The 700R4 transmission was introduced by Chevrolet in 1981 to run with the 1982 model year vehicles. It was designed for truck and larger car applications. Some examples of Chevrolet vehicles that can carry the 700R4 include the Blazer, the Camaro, the …Add To Cart. $262.95. TCI. Details. GM 700R4. JEGS 555-62156 Master Transmission Rebuild Kit has everything you need to refresh and rebuild your GM 700R4 with extended durability and the ability to handle more performance. This kit replaces all wear items and upgrade common wear points in your stock transmission.2 days ago · Deluxe Rebuild Kit: 700R4 Transmission 1987-1993. Includes: Master overhaul kit with friction clutch plates, standard steel plates, Kevlar band, SPX filter, pump bushing, pump seal retainer, Corvette style servo piston kit with servo piston, sleeve, O rings & sealing rings for firmer shifts, and .500 boost valve.13 May 2008 ... I have a 85 chevy truck 4x4 with a 700r4 transmission that will not shift out of first gear (reverse works good) Can - Answered by a ...700R4 1987-1992 (4L60) 4X4 TRANSMISSION 5.7L 5.0L 4.3L. $ 2,299.99. Before any …Drive Shaft. If your original TH350 came with a 6-inch tail shaft, you'll have to cut the drive shaft by 3 inches. If your old transmission had a 9-inch tail shaft, then the drive shaft should fit. The 700R4's drive shaft yoke is identical to the TH350's, so your old yoke should work nicely with the new transmission.Jun 2, 2022 · The 700r4 and 4L60 are two different types of transmissions in cars. The 700R4 is a four-speed automatic transmission that was introduced in 1979. The 4L60 is a six-speed manual transmission that was introduced in 1993. The 700R4 has been the most popular choice for American car manufacturers since its release because of its durability, …Accessories. LS-Series Engine to Chevy TH350/700R4/2004R Flexplate Kit. Price: $299.00. Transmission Mount Polyurethane GM. Price: $74.95 Sale Price: $69.95 Sale. 15 Tooth 700R4 Speedo Drive Gear. Price: $48.95 Sale Price: $18.95 Sale. 17 Tooth 700R4 Speedo Drive Gear. Price: $29.95 Sale Price: $18.95 Sale. May 17, 2017 · 8. While pushing down on the TV boost valve sleeve we removed the retaining ring with a pair of snap ring pliers. There is some tension behind it, so beware. We were then able to remove the TV ...The 700R4 is a great transmission with a low first gear (3.06:1) and a desirable …Transmissions Stock Transmissions Custom Transmissions Performance Transmissions Featured Transmissions Replacement Transfer Cases Transmission Coolers Reman Transmissions FAQ The Jasper Process Why Jasper Transmissions RAP®2 Program Value-Oriented Products & Superior Customer Service JASPER is committed to helping …Look out for those as you’re planning your swap. The dished flexplate bolts right to the back of the crank, and the sleeve slides right in to support the nose of the converter. LS swapping an older car can get expensive. Using the TH350, 700R4, 200-4R, or Powerglide transmission that you already have can really free up some room in your ...Apr 1, 2018 · Gear Ratios – The TH350’s gears are placed closer together (despite having less of them). While a vehicle with 4.11 gearing may scream down the highway with a a TH350, it’s going to keep the engine in the power band longer. The 700R4 goes from a 3.06 -> 1.62 1-2 shift, which is way more aggressive than the Turbo 350’s 2.74 -> 1.57. After the engine, the most expensive repair for a vehicle is the transmission. With absolutely no care or maintenance, an automatic transmission can last as little as 30,000 miles....Sep 21, 2018 · TCI 211401 - Maximizer 4x4 Transmission GM TH400 (all Chevy... (0) $2,306.95. Some parts are not legal for use in California or other states with similar laws / regulations. Get the Best Performance with TCI 371402 Maximizer 4x4 Transmission 1984-93 GM TH700R4 (30-spline) 371402 parts at JEGS. Shop Now at the Guaranteed Lowest Price! Drive Train. 4×4, RWD. Chevrolet C/K TRUCK 1983-1992 Rebuilt Transmission 700R4. …13 Mar 2019 ... However, the 700r4 is also known as the 4L60. So basically I am asking if an 85 4L60 4x4 can be attached to a 94 4L60e transmission.22 Dec 2020 ... I'll tell you what. If this transmission lasts any length of time, it is thanks to the work from the guys at Bowtie Transmissions.Brand new built 700r4 transmission 4x4 with 0 miles. Was installed in a 87 Chevy square body 4x4. Was built for lifted truck Was installed in truck and now not redoing truck so parting out. Not interested in trades. (Pic is not of actual transmission it’s …Dec 11, 2010 · I pumped out the pan and dropped it and changed the filter. Then I pulled the upper radiator transmission line off and slid a clear hose over it and ran the hose into a 5 gallon bucket. Pulled the dipstick and put in a funnel. Had my girlfriend start the car and as fluid pumped into the bucket I added into the funnel.Later versions use a pinned flare and o-ring design for these fluid circuits. The key distinction of the 700R4 / 4L60 / Early 4L60-E (from the Later 4L60-E) is the four bolt rear output or tailhousing / adapter pattern. The Later …Feb 8, 2010 · The spacer and the longer crank bolts will bolt right up. You will need to elongate the holes for the LM7 flexplate to converter bolt holes. This is because the LM7 flex plate is metric spacing. Then when you moount the trans leave the bolt at the pass top out, as the LM7 isn't drilled for it. It'll work fine with just the 5 bolts holding it to ...When used with a TCI® Heavy-Duty Towing torque converter, you can be sure the transmission package is tailored to provide long, dependable service and maximum fuel economy. The optional low gear package offered with each of our RV units is a great addition for trucks pulling heavy loads. The Maximizer™ 4x4 transmissions bring …Shop 700R4, Automatic Transmissions and get Free Shipping on orders over $149 at Speedway Motors, the Racing and Rodding Specialists. 700R4, Automatic Transmissions in-stock with same-day shipping. Talk to the experts. Jun 2, 2022 · The 700r4 and 4L60 are two different types of transmissions in cars. The 700R4 is a four-speed automatic transmission that was introduced in 1979. The 4L60 is a six-speed manual transmission that was introduced in 1993. The 700R4 has been the most popular choice for American car manufacturers since its release because of its durability, …2004r 350 700r4 4l60e 4l65e 4l70e 4l30e nv1500 powerglide sm318 sm319 st300 jetaway saginaw etc transmission & transfer case tail housing bushing 1.630" o.d. grooved (babbitt) TPD PRO-LINE $7.98 $6.98 $10.95700R4 - Shift Rite Transmissions Remanufactured 700R4 Transmission Shop by Category Transmissions | Torque Converters | Transmission Parts | Transfer Cases | All A Transmission and reputation you can …Jun 23, 2022 · The 4L60E transmission was launched in 1992 as the latest version of the 700R4 transmission, commonly called the 4L60 transmission. This upgrade features in most GM trucks, vans, SUVs, and rear-wheel drive vehicle applications. The automatic shift, four-speed overdrive is longitudinally positioned, can function in different heavy-duty four …Dec 23, 2020 · Advance Adapter The GM 700R4 main shaft kit is used when replacing a TH400 in model years 1985-91. Once installed into the 700R4, the output side of the 700R4 looks identical to a 4WD TH400 that is being replaced. The adapter kit includes a new output... www.advanceadapters.com. Add To Cart. $262.95. TCI. Details. GM 700R4. JEGS 555-62156 Master Transmission Rebuild Kit has everything you need to refresh and rebuild your GM 700R4 with extended durability and the ability to handle more performance. This kit replaces all wear items and upgrade common wear points in your stock transmission.Free Shipping on Orders Over $109 at Summit Racing. Off $1,000 - Use Promo Code: Order Status & Returns. 1,327 Results Found For "700r4 transmission". Results 1 - 25 of 1327. Automatic Transmission, Forward Shift Pattern, Automatic Valve Body, Chevy, 700R4, RWD, Each. This product may not be eligible for select promotional offers. Select a Vehicle & Find the Parts That Fit. Filter your results by entering your Year, Make, Model to ensure you find the parts that fit your vehicle. Select or Add a Vehicle. 1 - 24 of 5281 results for Transmissions. Compare. Jun 6, 2022 · Of course, there are other potential problems inside the transmission that can cause these issues. So the best way to set the TV cable is to do this along with a transmission line pressure gauge. All 700-R4 transmissions offer a small 1/8 inch pipe thread fitting on the driver side of the transmission positioned just over the shift linkage.700R4 Transmission Recommendations. Experts highly recommend …We’ve outlined an overview of the 700R4 transmission, its upgrades, …700R4 TRANSMISSIONS Show Quick View 700-R4 GM Performance Transmission - …Four-wheel drive vehicles demand rugged performance from their transmissions, especially when used for off-road driving or towing. When properly maintained, AAMCO can help keep your 4x4 on the road or off the road if you prefer. Our 4x4 services include: Draining and refilling the Transfer Case with fresh, clean fluid. 15 Jun 2009 ... How To Remove a 700R4 Automatic Transmission. Monster Transmission & Performance http://www.monstertransmissions.com ...

The GM 700r4 is a 4-speed automatic transmission with overdrive. It was introduced in the early 1980's, as way to make their V8 powered cars and trucks more .... Rvinyl

700r4 4x4 transmission

Feb 15, 2024 · The Bare Bones 700R4 Transmission is designed for folks on a budget. Nothin fancy here, this is a factory rebuilt 700R4 transmission. Fully tested for quality assurance and available for a limited time! This 700R4 transmission is ideal for vehicles producing factory horsepower and torque levels. The Bare Bones 700R4 is for …3 days ago · TCI Maximizer 4x4 Transmissions 311700. Automatic Transmission, Remanufactured, Forward Shift Pattern, Automatic Valve Body, Chevy, TH350, 4WD,1982 and later 208NP Transfer Case, Each. Part Number: TCI-311700. ( 1 ) Estimated Ship Date: Mar 13, 2024 if ordered today. The only real difference visually is the front bell. Racing with a stock 700R4 while in overdrive risks the integrity of the O/D band and limits your performance in a drag race, and can ruin the transmission. But a custom built 700R4 is made of sterner stuff, and reduces the lag time introduced by sloppy and sluggish shifts.Dec 1, 2001 · You’ll need a transmission overhaul kit that includes all new clutches, steels, seals, and gaskets like the 700R4 Pro-Super rebuild kit we got from TCI Automotive.Auto Service Center - Stanhope, NJ - Victor Dean DBA Buy Wise Transmission. 133 State Route 183, Stanhope, NJ 07874| [email protected]. CALL US TODAY! (973) 347-1860. Home; Why Choose Us; Services; Reviews; Location/Contact; CUSTOMER SERVICE IS OUR NUMBER ONE PRIORITY DEPEND ON US FOR OUR …1 day ago · 4l60e Mechanical Components Diagram. see all internal components of a 4l60e transmission with this exploded view detailing with parts and information.Auto Service Center - Stanhope, NJ - Victor Dean DBA Buy Wise Transmission. 133 State Route 183, Stanhope, NJ 07874| [email protected]. CALL US TODAY! (973) 347-1860. Home; Why Choose Us; Services; Reviews; Location/Contact; CUSTOMER SERVICE IS OUR NUMBER ONE PRIORITY DEPEND ON US FOR OUR …4 days ago · CALL 800-708-0087, Office Hours are Monday-Friday, 9:00am-6:00pm EST. 700R4 Transmissions - Heavy Duty. 700R4 Transmissions - Super Sport/Super Duty. 700R4 Transmissions - Xtreme SS. 700R4 Transmission Rebuild Kits.Jan 17, 2024 · The need for an overdrive and lock-up torque converter led to the production of the 700R4 transmission, later upgraded to the 4L60 and 4L60e. However, while the 700R4/4L60e performed excellently, they were not as strong as the TH400. General Motors wanted a powerful automatic overdrive, hence, the introduction of the 4L80e. As stated …Your 700R4 can be ordered ready to join (or joined) to the following Jeep transfer cases: Dana 18, 1941-1971. Dana 20, 1962-1979. Dana 300, 1980-1986. New Process Jeep 208, 219 & 229. New Process 207, 231, 241OR, 241, 242 & 249. We can do a full rebuild of your transfer case if you ship it to us. 3 days ago · TCI Maximizer 4x4 Transmissions 311700. Automatic Transmission, Remanufactured, Forward Shift Pattern, Automatic Valve Body, Chevy, TH350, 4WD,1982 and later 208NP Transfer Case, Each. Part Number: TCI-311700. ( 1 ) Estimated Ship Date: Mar 13, 2024 if ordered today. Apr 14, 2018 · GM Transmission RPO Codes. January 9, 2019 by Jason. RPO Codes are a system that GM uses to identify which parts and options are on any particular vehicle that they manufacture. RPO codes are typically placed in the glove compartment, which allows you to view the options on your vehicle without ever cracking the hood, or crawling under …2007 Chevrolet Silverado (Classic) 2500 HD Crew Cab · LT Pickup 4D 6 1/2 ft. Fredonia, KS. $1,234. Car Trailer. Chetopa, KS.The 700R4, also known as TH700R4, THM700R4, 4L60, or 4L60E, is a four-speed overdrive, longitudinally positioned, automatic shift transmission introduced in 1982 as the TH350's replacement. It was widely used in Chevrolet and …Oct 17, 2016 · Superior (K700-R4) TH700-R4: Shift Improvement Valve Body Kit. 22. Choice. in Automotive Replacement Transmission Valve Body Kits. 1 offer from $43.22. Universal Transmission Holding Fixture Including Base for 375 400 425 475. 169. in Automotive Replacement Transmission Mounts. 2 offers from $69.99.13 May 2008 ... I have a 85 chevy truck 4x4 with a 700r4 transmission that will not shift out of first gear (reverse works good) Can - Answered by a ...8 Apr 2020 ... 700R4 transmission is a task for any Bronco owner. Throwing an Atlas transfer ... Monster Transmissions, 700R4 4x4 Heavy Duty Truck Transmission..

Popular Topics