700R4 build thread.

[clinebarger]

Overrun clutch detail, Not much to it.

[clinebarger]

Now you will be looking at the Overrun/Forward piston Return spring assembly.
Compress spring cage, Remove snap ring.
Turn Drum over, Apply air to the 3-4 clutch feed (shown in earlier post).
This will blow the pistons out. Some builders smack the drum against the work bench to remove pistons, Good way to crack this delicate drum.

Remove the inner O-ring from the Input Drum (pic), DO NOT forget to reinstall this O-ring!!! Upon assembly. Thin Green O-ring in the seal kit.

[clinebarger]

On to the Reverse Input Drum.

**NOTE** 82-86 used a different drum than 87-93, They DO NOT interchange!
The early one has a Steel piston The late drum has a Aluminum piston.

Remove snap ring, An Awl works best. Lift the clutches & steels out. Compress the return spring cage, Remove snap ring, Remove Piston.

I recommend replacing this drum, The 2-4 band rides here. If you want to reuse it Check it with a Straight Edge for flatness, If flat, Do a light cross hatch with emery cloth to knock the glaze off. Then Replace BOTH bushings!!

New drum for $62.11, Amazon.com: 700 4L60E New Reverse Input Drum:... Worth it if you ruin a few bushings getting your technique down.

[clinebarger]

Front pump, Using the stand you made earlier out of the sunshell, Place the pump Seal down on the stand.
Remove the 5 13mm headed bolts that hold the pump halves together. Pull up on the top pump half exposing the Pump rotor, Vanes, Slide, Ring.

Remove the top Pump Ring, Lift the Pump rotor up by the torque converter lugs. Vanes will fall everywhere, Gather those up, Remove lower Pump Ring, If the plastic Rotor Pilot was left behind Remove it.
Fun Fact...The Rotor pilot's only purpose is to keep the Pump rotor centered for Torque Converter install.

Using a screwdriver or awl. Get under the primer spring & remove it.
**NOTE**Always use you hand to block springs from launching into orbit

Remove Pump Slider, Wiper seals, Slider pin & spring.

Inspect both pump halves for damage, Inspect for Pump Bushing walk.

[clinebarger]

Continued,

[clinebarger]

Parts ordering.

I highly recommend using 4L60E frictions in ALL '87-'93 700R4's, Along with late "E" molded pistons in the Input Drum.
This is an "E" kit with Borg Warner frictions (Hi-Energy 3-4 clutches & 2/4 Band), Raybestos steels, Teflon pump bushing, Case bushing & molded pistons Amazon.com: 4L60E 4L65E 4L60-E Master Overhaul...The Filter & Valve body gaskets WILL NOT work on 700R4's, But at $172 the filter & seal kit are free. And its good for a first timer to have extra seals

700R4 seal kit, TransTec has the Lip Wizard Lip seal tool included.
700R4 Filter, SPX-Filtran
4L60E Overrun return spring assembly, GM part# 4206085, Needed for molded pistons.
Borg Warner 29 element Forward Sprag
Borg Warner Low/Reverse Sprag
Sonnax pinless accumulator pistons (2) http://www.sonnax.com/parts/2520
Sonnax purple accumulator springs (2) http://www.sonnax.com/parts/1660
TransGo SK 700-JR, Their TV kit is top notch. Good accumulator bushing spring selection as well. The rest of the kit does not work well in all transmissions!
TransGo Pump Rings
New pump Vanes
TransGo 700-p separator plate
Sonnax wide sun gear bushing
Sonnax wide Stator bushings
GM 3-4 apply plate, Part# given earlier
Torrington/Koyo bearing kit

[clinebarger]

ASSEMBLY.

If you did not install Case Bushing already, Do it now.

Install the transmission (low and reverse clutch outer, center, inner) seals (696) on the low and reverse clutch piston (695).
Lubricate the seals with Transjel or an equivalent.
Install the low and reverse clutch piston (695) into the case. The notch in the piston must be aligned with the parking brake pawl window, in the case.
Install the low and reverse clutch spring assembly (694).
Using the J23327-1 or similar tool, compress the low and reverse clutch spring assembly (694).
Install the low and reverse clutch retainer ring (693).

I don't use snap ring pliers on this snap ring, Using 2 long flat screwdrivers. Start one end of the snap ring in the groove using 1 of the screwdrivers, hold it in the groove, Use the other screwdriver to roll the rest of the snap ring in.

[BADAZ chevy guy]

Originally Posted by clinebarger

Parts ordering.

I highly recommend using 4L60E frictions in ALL '87-'93 700R4's, Along with late "E" molded pistons in the Input Drum.
This is an "E" kit with Borg Warner frictions (Hi-Energy 3-4 clutches & 2/4 Band), Raybestos steels, Teflon pump bushing, Case bushing & molded pistons Amazon.com: 4L60E 4L65E 4L60-E Master Overhaul Rebuild Kit w Borg Warner Frictions: Automotive
The Filter & Valve body gaskets WILL NOT work on 700R4's, But at $172 the filter & seal kit are free. And its good for a first timer to have extra seals

700R4 seal kit, TransTec has the Lip Wizard Lip seal tool included.
700R4 Filter, SPX-Filtran
4L60E Overrun return spring assembly, GM part# 4206085, Needed for molded pistons.
Borg Warner 29 element Forward Sprag
Borg Warner Low/Reverse Sprag
Sonnax pinless accumulator pistons (2) http://www.sonnax.com/parts/2520
Sonnax purple accumulator springs (2) http://www.sonnax.com/parts/1660
TransGo SK 700-JR, Their TV kit is top notch. Good accumulator bushing spring selection as well. The rest of the kit does not work well in all transmissions!
TransGo Pump Rings
New pump Vanes
TransGo 700-p separator plate
Sonnax wide sun gear bushing
Sonnax wide Stator bushings
GM 3-4 apply plate, Part# given earlier
Torrington/Koyo bearing kit

Is this a complete rebuild kit? (All the parts listed here come with it.) Or is this a list of parts I'll need to get separately from the kit? I looked over the ad and I don't see any bushings or a sun shell listed with the kit.