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Rebuilding a VS Transmission

DEE SS

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Hi any body rebuilt there 4L60E themselves? Any where i could get a detailed repair manual from? What type of parts, how much and where you could you buy them from? 2nd Gear is slipping/blown 1st, 3rd and 4th are ok. any info or suggestions would be very helpful thanks.
 

D3V14NT

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Hey mate,

I'm just about finished on a T700 rebuild myself (4l60e without the electronics really). Bought all the parts off a US ebay seller for peanuts, they're called CT Powertrain but there are a few on there. They also sell the repair manuals but I found everything I needed from Google.

If you're going to do it youself best thing to do is pull the trans out and strip it down to each individual component. After you've stripped it down clean it all perfectly. Then you can check it all out and see what will need to be replaced. Regardless of wear you should replace the band, all the clutches, all the steels and all the seals. Better to do it right the first time than to do it twice.

If you have enough spare cash there are also quite a few things you can do to upgrade the box. Some updated/upgraded parts include:
- Steel Pistons
- Beast Sunshell
- Wider Band
- 5 Gear Pinion
- Strengthened output shaft
- 13 vane pump kit
- Various kinds of shift kits
- Various other fixes (TCC apply fix is a common one for the 4l60e)
- Upgraded servos (corvette, billet, etc)
Check out the various sellers for an idea of what parts you can upgrade your box with.

Theres a few tools you'll need to do everything yourself or if you're handy you can make them yourself. Otherwise somethings you just won't be able to do. Some of the things I wasn't able to do included the fitting of the input shaft seals and the compression of the various piston spring retainers.

The 4 input shaft seals are solid teflon rings which need to be stretched out to be put into place, they then need to be compressed back to the correct size. They are a critical seal and will cause all sorts of dramas if they aren't sealing correctly.

The piston spring retainers are spring loaded plates which push against the apply pistons, pushing them back into place when the gear they apply for is no longer selected. I fitted stiffer springs with my shift kit and was unable to compress them down far enough to fit the circlip that holds them in place.

I just took those parts in to a trans shop and got them to do it. Cost bugger all and saved me the hassles.

I have a bit of literatur that I can send to you if you want. PM if you're interested.

Cheers,
Jarrad
 

DEE SS

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Thanks mate PM sent
 

hako

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woteva

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Thanks for the info. Was going to tackle this a couple of years ago, but everyone said it was too hard.
 

Z2TT

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Excelling thread guys, this should be stickied, or we need a JC "Auto Trans Tech/Rebuild thread"
I'm pretty keen to get my old 4L60-E out and see if I can find the cause of the annoying shudder in 1st Gear under Load.

Anyway I happen to have a few good files on the 4L60, do you guys want :

- 4L60-E Overhaul Procedures
- Electronic Control Schematic/Details
- Hydraulic Schematics
- Manual Shift Conversion Guide

If you answered YES to all questions, CLICK HERE then click Download

 
Last edited:

hako

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Excelling thread guys, this should be stickied, or we need a JC "Auto Trans Tech/Rebuild thread"
I'm pretty keen to get my old 4L60-E out and see if I can find the cause of the annoying shudder in 1st Gear under Load.

Anyway I happen to have a few good files on the 4L60, do you guys want :

- 4L60-E Overhaul Procedures
- Electronic Control Schematic/Details
- Hydraulic Schematics
- Manual Shift Conversion Guide

If you answered YES to all questions, CLICK HERE then click Download
Check your link again - file size is only 3kb
 

delcowizzid

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Hey mate,

I'm just about finished on a T700 rebuild myself (4l60e without the electronics really). Bought all the parts off a US ebay seller for peanuts, they're called CT Powertrain but there are a few on there. They also sell the repair manuals but I found everything I needed from Google.

If you're going to do it youself best thing to do is pull the trans out and strip it down to each individual component. After you've stripped it down clean it all perfectly. Then you can check it all out and see what will need to be replaced. Regardless of wear you should replace the band, all the clutches, all the steels and all the seals. Better to do it right the first time than to do it twice.

If you have enough spare cash there are also quite a few things you can do to upgrade the box. Some updated/upgraded parts include:
- Steel Pistons
- Beast Sunshell
- Wider Band
- 5 Gear Pinion
- Strengthened output shaft
- 13 vane pump kit
- Various kinds of shift kits
- Various other fixes (TCC apply fix is a common one for the 4l60e)
- Upgraded servos (corvette, billet, etc)
Check out the various sellers for an idea of what parts you can upgrade your box with.

Theres a few tools you'll need to do everything yourself or if you're handy you can make them yourself. Otherwise somethings you just won't be able to do. Some of the things I wasn't able to do included the fitting of the input shaft seals and the compression of the various piston spring retainers.

The 4 input shaft seals are solid teflon rings which need to be stretched out to be put into place, they then need to be compressed back to the correct size. They are a critical seal and will cause all sorts of dramas if they aren't sealing correctly.

The piston spring retainers are spring loaded plates which push against the apply pistons, pushing them back into place when the gear they apply for is no longer selected. I fitted stiffer springs with my shift kit and was unable to compress them down far enough to fit the circlip that holds them in place.

I just took those parts in to a trans shop and got them to do it. Cost bugger all and saved me the hassles.

I have a bit of literatur that I can send to you if you want. PM if you're interested.

Cheers,
Jarrad
if you fit a wider 2nd gear band make sure you fit a brandnew reverse input drum for it to run on or you burn the band out quickly
 

D3V14NT

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if you fit a wider 2nd gear band make sure you fit a brandnew reverse input drum for it to run on or you burn the band out quickly
Would be ideal to replace the drum regardless, I'm yet to see one come out of a worn trans that doesn't have an uneven surface.

Delco, do you know of any tricks to refit the input drum back into the trans. Trying to get the 3-4 clutch packs to line up with the teeth on the front planetary is driving me mad.
 
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