I am recommending this to every Chevy and gmc owner I see now. The 700 transmission drove the industry crazy with broken pump vane rings, burned 2-4 bands, premature 3-4 clutch failure, sprag failures, planet failures, etc. It is 100% worth the money, and I wish I had done it sooner. THM 700R4 - 4L60 Transmission Remember when the THM 700R4, now more commonly know as the 4L60/E, transmission was introduced in the early eighties. The trans shifts very confidently, holds the rpms longer, down shifts easier, ect ect.īasically everything all the other reviews say. The whole process took me about 5 mins, but I had a lift and plenty of tools. Reinstall the shield, and top off any fluid that spilled out. That PB blaster everywhere should help it slide right in. This is the hardest part, you have to shove the new metal ring into the groove while keeping the solenoid pressed in.
700r4 corvette servo in used trans install#
Then install the top half, and pry inwards. Install the new bottom half, being certain the spring is sitting right,and that you have everything assembled correctly. Some trans fluid may come out when removing, so place a catch can down beforehand. We custom build each and every one of our transmissions for our customers application using high quality components. I took it out piece by piece and la id it out how it was removed. Will be built electronic lock-up unless you choose non-lockup under options. Now pull the top half off the solenoid out, then the bottom half, keeping track of what goes where and what direction is facing. Pull the solenoid out of the trans out about an inch, till you see a rubber o-ring. Spray more PB if you want into the groove. Using some pliers or similar, pull out the large metal ring in the groove. I leveraged off the muffler and the muffler barely showed any force applied, it didn't take much force to press inwards, if you use the penatrating oil. Use pry bar and press the solenoid inwards, into the transmission. Spray down the oe solenoid with PB blaster or similar. Remove the shield held on by 2 10mm bolts. Installed on 04 Yukon 5.3 with 243K miles. I have an old roomate that still fuses about the time I spilled coffee all over him when I was just easing along and the truck shifted into second so hard it spilled all over him.100% worth it. Kits may be used individually or combined to create the ultimate. Easy-to-install with the transmission in the vehicle. Since the servo applies the 2-4 band in 2nd gear, releases it in 3rd and reapplies it in 4th, the servo plays a vital role in the operation of your transmission. and snappy but not unliveable hard shifts. These two servo kits will enhance the shift quality and extend durability of any 700R4/4L60E/4L65E transmission. that and I was running a 9-1/2" vigilante converter locked after it went into second.Īnyway.
With COVER and Completely Remanufactured with New D-Rings, New Seals, New Upgraded Spring, Longest Servo Pin, Remaned OEM Cover with High Temp Paint (Black, Blue, Silver), New Heavy Duty Corvette Servo Upgrade. It would rattle the dash when it shifted if you weren't on the gas enough to bark second. 700R4 4L60E 4L65E 4L70E GM Automatic Transmission High Performance 2-4 HD Corvette Servo Assembly.
this combined with the billet servo I was running at the time. one of the shift kits completely blocked off the 1-2 accumulator (read shift softener) completely. Our high performance will hold 500 horsepower. I think I broke anything that could be broken by a 400 HP V8. Replace your 3 speed with this 4 speed 700R4 for better gas mileage and lower RPMs on the highway. but I had my 700R4 out of that V8 S10 about 10 times over a year and a half period. I know you guys are 200 guys, and i got some really useful advice on the one i put in my camaro, but this one`s on a 700.i have an 88 chev 3500 with a 350 and originally a th400.problem was the th400 sucked on the highway.i converted it to a 700r4 with the correct dsshaft and ecm, and was very happy with the performance gain on the highway,BUT it flaired on the 2-3 shift.this conserned me, so i did some pressure tests, and a local tranny guy told me they sounded fine.i then installed a b&m shift kit.i pulled the accumulator housing and found both springs were broken.i thought "ahaaaaa", but was wrong.(the shift kit replaces the springs with spacers) now the tranny shifted hard into 2nd, and improved 2-3 shift, but still flaired.just not as bad.shortly thereafter, i blew up the pump.(broke at the dogs where they engage the converter) so i replaced it with an on the shelf unit i had kicking around, and no more probs.i`m gonna fix the 1st trans, because i like having a spare around, and this one looks to have been rebuilt fairly recently, but i want to rectify the probla=em at the same uld it be a leaky servo at the shaft, or seal?any help is realy appreciated.
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