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If you are looking for a way to upgrade your classic muscle car’s Powerglide or TH350, then you would be hard-pressed to find a better answer than the 700R4, or the 200-4R. Yet while the 700R4 is often seen as the more popular successor to the throne of the TH350, the 700R4 is not going to squeeze into every build, not is it necessarily the best fit for your car – especially if you are going forward with a lot of aftermarket work in mind. If you are looking for an upgrade to your old muscle car and want something that both packs a punch and substantially improves your fuel efficiency, then the 200-4R is the right place to start. Its bellhousing, drive shaft, and mechanical speedometer make it a superior fit for vintage cars, and its sturdier build and better torque capacity make it the better non-electronic 4-speed overdrive transmission for classic GM performance builds. It is not very costly, can still be found scrap/salvage yards and in junk shops, and is reasonably affordable. And remember, if you snag yourself a late-model 200-4R from one of the more recent productions, it will handily outdo the stock 700R4 found in older vehicles. It is by no means a perfect transmission and the 700R4 will typically outdo it, and even if you pick up a newer stock version from the wrecking yard at a bargain you will still have some ways to go to making it race-worthy, but a little magic and some elbow grease will turn the 200-4R into your personal holy grail of power and fuel efficiency. The 200-4R was a continuation of the Turbo Hydramatic line of GM transmissions, specifically being the successor of the TH200, a light-duty TH350 designed to improve fuel efficiency in the face of the oil embargo of 1973. The servo comes with all of the necessary seals for installation including the outer cover o-ring, as well.
700R4 CORVETTE SERVO IN USED TRANS INSTALL
Our servo is easy to install and can be done with the transmission in the vehicle. Years later, in 1981, the TH200 was replaced by the newly-introduced 200-4R, a 4-speed automatic overdrive transmission used in high-power GM trucks and cars, including the Buick Grand National and Pontiac Firebird Trans-Am. The corvette servo is a must for any performance vehicle, for towing, RV, or off road use, and is a positive upgrade for any 700R4 or 4L60E transmission. The 200-4R can be found in various GM B-body vehicles, C-body vehicles, G-body vehicles, and D-body vehicles. Similar in build to the TH350, the 200-4R proved to be a great update to the outdated 3-speed transmission in builds where an overdrive gear was a must. Eventually, in 1990, the 200-4R was phased out for the 700R4, and later iterations of the same transmission including the 4L60 and 4L60-E. The 200-4R is a 4-speed automatic overdrive transmission by GM, capable of fitting into most Chevy’s from the 80s and before, built similarly to the TH200 and TH350, as well as the 2-speed Powerglide transmission. Build with a torque converter lock, a 27-spline input/output shaft, 11-quart fuel capacity, a case length of about 27” and a width of about 19”, and an aluminum outer casing, its torque capacity outdoes even the reliable 700R4 of the time. The 200-4R uses a throttle valve cable, which can be replaced based on the exact specifications and compatibility of your car. Q: How much money are we looking at A: I bought mine on eBay, from Oregon Perfomance Transmission. 700r4 corvette servo advantages upgrade# Q: What benefit does a Corvette Servo give you A: Youll get firmer, faster shifting, and about 50 more holding power in second gear, which is where the 700R4 or 4L60E transmission really lacks in quality.ONCE YOU GET YOUR STOCK SERVO OUT YOU WILL SEE THAT YOUR ORIGINAL ONES ARE THE SAME. ************ IMPORTANT, PLEASE READ************ THE TWO BLACK SEALS THAT COME WITH THIS SERVO ARE SLICED FROM THE FACTORY. I have many nice upgrades for these transmissions. Please check out my other auctions and new eBay Store for great deals on torque converters and other transmission parts. The servo comes with installation diagrams and is easy to install with the transmission in the vehilce. Just what you need to keep from burning your transmission up under heavy load situations. This servo will give your transmission 50% more apply pressure. Right away you'll notice faster and firmer 1-2 and 2-3 shifts. This servo is a must for any performance, towing, RV/off-road application, but would be a nice upgrade for any 700R4 or 4L60E. New Corvette Servo for the 700R4 (4L60), 4L60E, 4L65E, 4L70E, 4L75E 1982-up This is a very high quality item made in the USA. Item: 382892180836 700R4 Corvette Servo Piston 4L60 2nd Gear Automatic Transmission 700-R4 TH700. Seller: oregonperformancetransmission ✉️ (46,324) 99%,