700R4 build thread.

[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.

[clinebarger]

Originally Posted by BADAZ chevy guy

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.

The rebuild kit Amazon.com: 4L60E 4L65E 4L60-E Master Overhaul... comes with a Seal kit, All Friction, Steels, 2/4 Band, Pump Bushing & Case Bushing

Then buy a 700R4 seal kit to have 2 of every easily damaged seal, For a first timer it's almost needed in case you damage a sealing ring or lip seal.

Everything else on that list is separate from the rebuild kit.

***************************************************************

If you NEED to save some money, Here is a new parts list of the bare minimum.

Rebuild kit Amazon.com: 700R4 AUTOMATIC TRANSMISSION SUPER...Not sure if this kit comes with a Case Bushing??

Things needed on top of the Rebuild kit....
TV correction Kit, Call Bowtie overdrives 760/947-5240, They sell the TransGo TV kit separate.
Borg Warner 29 element Forward Sprag
TransGo Pump Rings
TransGo 700-p separator plate
Sonnax wide sun gear bushing
Sonnax wide Stator bushing
Torrington/Koyo bearing kit
Delco SunShell Amazon.com: ACDelco 24243878 Reaction Sun Gear...

[clinebarger]

Lets finish up the pump.

Remove the snap ring holding the TV Boost Valve, Reverse Boost Valve, PR Spring & PR Valve.

Measure the diameter of the TV Boost Valve, .422" is the Minimum Diameter I recommend on a V8 700R4, I prefer a .471" for mild builds, .490" for hotter builds. .500" Boost Valve are available as well. If reusing the stock valve, Check for wear between the Valve & Bushing.

The Low-Reverse Boost Valve is next, If you back heavy trailers or Manual shift a lot, Consider a larger Diameter Reverse Boost Valve. If reusing, Check for wear between Valve & Bushing.

Pressure Regulator Spring (PR Spring) lose tension over so many hundreds of thousands of cycles, REPLACE, TransGo "Green" PR spring is good, Sonnax 77917-08 is good as well.

Pressure Regulator Valve (PR Valve). Grind Land Flush with Spool as shown below, This helps with "PR Buzz" & increases lube flow. If the Valve has 2 Flats machined on the land, This is not 100% necessary, Though I do it anyway.

Clean bore & Line-up & reinstall, The Snap Ring has a rounded side & a Flat side, Install Flat side UP...Away from TV Boost Bushing.

[clinebarger]

Pump continued....

Locate TCC Apply Valve train (Outlined in Diagram), Remove Snap Ring, Remove Valve Stop, Apply Valve & Springs, Reinsert valve into bore, Check for side play, If present....Install Sonnax 77805-K Valve, The Teflon seal will prevent Cross-Leaks.
If no wear is found, Clean & reinstall Valve train.

Enlarge the hole circled, This will match the drain back hole in the pump cover & help prevent Seal Blow-out as the pump bushing wears.

Stator Shaft Sealing Rings (233 in the diagram), If you have 1 piece Teflon Rings, Check for nicks or damage, If none is found reuse them, If you have Scarf Cut sealing rings, Replace with new Scarf Cut seals.

**Note/Tip, The Teflon 1 piece Stator Sealing Rings Grow when not installed the Trans, Use your old Revere Input Drum to keep them sized until pump install**

[clinebarger]

Remove Pump Thimble Filter, Install with new filter & O-ring from the Seal Kit (234 & 235 in Diagram above)

Align the 2 Square shapes circled in the Pic's below. Bolt the 2 Pump Halves together FINGER TIGHT!!
If the Pump to case seal is still intact, Remove it.

**Pump Alignment without a tool**
Install the pump UPSIDE DOWN in the Case.
Start all Pump to Case Bolts.
Torque the Pump Half bolts to 18 ft. lbs.
Remove Pump from Case
Install new Pump to Case Seal.

Finally done with the Pump.

[clinebarger]

Install the parking pawl bracket (86) & The parking pawl bracket bolts (87), Engage Park, Verify the Output shaft does not turn. (This will aid in Input Drum Install)

1.Install the selective thrust washer (616) on the input housing (621).
2.Install the stator shaft/selective washer bearing assembly (615) on the input
housing (621). The black race on the bearing goes (up) toward the pump.
3.Install the reverse input clutch assembly (605) on the input housing (621).
4.Index the reverse input clutch plates with the input clutch hub. Make
certain all clutch plates are fully engaged.

[clinebarger]

Make CERTAIN the Input Sun Gear is installed in the Input Planet!!!!

Lower the Input Drum/Reverse Input Drum assembly into the Case, You will need to work the 3-4 Clutches over the Planet Hub.....I use a Big pair of Channel locks on the Turbine Shaft splines to turn the drum.
Try not to put all the weight on the 3-4 clutch drive tabs as you work the Drum down in the Case.

The Drum will fall down a little when all 3-4 clutches are engaged onto the hub, The reverse input drum will sit on the SunShell. If no slack/space between the Input Drum & Reverse Input is present, The 3-4 Clutches ARE NOT fully engaged.....Keep working it!