| Re: Signs of a bad torque converter? |
Subject: Re: Signs of a bad torque converter? by Matatk on 2012/3/9 2:11:23 So here's my status update so far. I've been doing a little reading, a little searching around. Lots of 700r4s out there. Most out of 4x4s or camaros. There are some internal differences, servos, governors, etc. The camaro has a 3/4" longer tailshaft and a different tailshaft housing. The housing is an easy swap, the shaft can be cut. But still some minor internal differences. Also, late 87 700r4s got an improved valve body change so those are desirable over the early ones. Not a lot of vette cores out there local to me. Two companies seem to offer comprehensive rebuild kits. Probuilt and PATC. Both seem good. So, I think for the summer I'm gonna deal with the shifting issues. Over the winter pull the trans and build it. I think finding a good vette case locally might be a challenge. And like someone else brought up to me, it could be from a wrecked car and be broken internally, then you end up paying for crap. So I think I'll just do my own when the car is laid up. Below are the specs between the two rebuild kits. Probuilt: $509 http://www.700r4l60e.com/store/produc ... roductid=40&cat=19&page=1 Complete description of parts in the rebuild kit: "Front Pump" Seal retainer Seal, late design Teflon bushing, late design 10-vane rotor with vanes, slide, rotor guide & pin assembly Trans-Go Steel rings & priming spring Intermediate/reverse boost valve, (.296) Main boost valve, (.471) New replacement stator support "Clutches, Steels And Pressure Plates" 4 Borg-Warner reverse/input clutches .078 4 Reverse/input "low drag" Turbulator steels .078 1 Reverse waved steel (eliminates the belleville spring that tears up the inside of the drum) 5 Borg-Warner forward clutches .070 5 Forward steels .090 2 Borg-Warner overrun clutches .078 2 Overrun steels .091 5 Low/reverse clutches, Borg-Warner .087 5 Low/reverse steels, Turbulator .068 8 Borg-Warner Hi-Energy 3-4 clutches .080 3 3-4 steels .060 5 3-4 Steels .076 1 3-4 top pressure plate .128 1 3-4 bottom pressure plate .128 1 3-4 snap ring .062 Borg Warner dual cage 29 element design GM HD (heat treated splines) sunshell Trans-Go HD replacement forward springs & 3-4 springs (good up to 7,800 rpm) Input to output shaft seal (Viton) Borg-Warner Hi-Energy 2-4 band Corvette 2nd gear servo Borg-Warner Low/reverse roller assembly (late design) Paper & rubber (gasket) kit New governor gear Case connector 3 prong Transmission filter (OEM) Converter solenoid & governor filter Bushing kit with 3 teflon Thrust washer kit Sealing ring kit HD Torrington Bearing kit Trans-Go Shift kit (Heavy Duty) w/accumulation for nice part throttle shifts Vamac 3 lip rear seal New Forward accumulator piston and 4th accumulator piston Modified second accumulator piston, 24219937 accumulator housing with hardened (RC52) thin pin, to replace your 2nd accumulator housing. This gives better part throttle shifts New oem Forward and 4th accumulator pins Dual Feed input shaft checkball capsule for better lockup Or PATC Level III Raptor 700 $660 Level 3, Super Master 700 Raptor Rebuild Kit #660. Included in the kit is everything you need to build our level 3 original 700 Raptor Transmission the worlds first true performance 700R4 transmission. This kit is for 1987 to 1993 700R4 transmissions only. Here's what you get, the Fairbanks oversize billet intermediate servo and the Fairbanks oversize billet overdrive servo. The Sonnax oversize .500" pressure valve and oversize low / reverse pressure valve. A Sonnax elevated pressure regulator spring plus a 10 vane pump rotor and vane kit. Also included is a pump seal retainer and pump bushing, Borg Warner 29 element forward sprag, new low / reverse roller clutch, #11CF Alto carbon fiber Power Band. This kit comes with a torque converter lock-up kit, complete thrust washer kit, Master rebuild kit with an Alto Red Eagle 3-4 clutch Power Pack that has Kolene steels. The master kit comes with all TransTec gaskets, seals and rings. You get a filter, extra wide rear stator support bushing, double wide sun gear bushing, Transgo separator plate, 2 performance accumulator springs, performance pump slide spring and a Corvette governor. As an added bonus you get a discount plus free freight in the 48 continental United States. After many years of research and development these parts where determined to work together best for a long lasting transmission. When we pull the parts to build a 700 Raptor transmission this is the exact parts list. You get everything in the 23 pictures below. This sale is for 1 Super Master Rebuild Kit to build a PATC level 3, 700 Raptor transmission. Torque converter not included in this kit. |
