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4L60E Rebuild


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Making this thread showing the progress of my 60E rebuild. Out of all the transmission guys on the site not sure if anyonne has posted something like this. Also not sure if you can consider this a "how-to" but it might be close. I definatly dont consider myself an experienced transmission builder by any means, but iv been through a few during school and figured I would test my skills on my own transmission.

 

Parts list:

Corvette intermediate servo

Sonnax billet overdrive servo

Double cage 29 element forward sprag

Low/Reverse spring roller

Alto red low/reverse clutches and Koleen steels

Alto carbon oversized 2/4 power band w/ reinforced anchor

New input drum/housing

Rebestos blue 3/4 clutches and steels

Rebestos blue overrun clutches and Koleen steels

Beast reaction shell

New reaction sun gear

GM rear 5 planetary gear set

Rear carrier ring gear

Thrust bearing kit

Sonnax boost valve

Billet forward accumulator

Billet 1-2 accumulator

EPC Solenoid

Superier valve body shift correction kit

4L65-E overhaul kit(gaskets,seals, ect)

GM updated valve body seperator plate

Billet 300m output shaft

Billet 300m input shaft

Billet input drum sleeve & piston

RPM high-rev spring kit

 

More parts will be added as I go. This is what I need/want so far

 

 

-TEARDOWN-

Heres what im starting with. 04 AWD 4L65-E. Guy I bought it from said low/reverse is out.

blowntrans.jpg

 

Here is the pan removed and electronics off looking at the valve body. More detailed pics during re-assembly

valvebody.jpg

 

Pump removed and set aside. Also 2/4 band

pump-band.jpg

 

Valve body, servos, and converter housing removed

removedvalvebodyservoandbellhousing.jpg

 

Oil pump removed, looking at the 2/4 holding band and reverse input clutch housing. As well as the input shaft

reverseinputclutchhousing.jpg

 

Band anchor removed and removing 2/4 band. Band didnt look bad at all

2-4band.jpg

 

Reverse input clutch drum and input housing set aside

inputhousingandshaftassy.jpg

 

Here you see the input carrier (or front plantetaries) and reaction sun shell. The sun shell is mated with the input housing/shaft assembly when assembled

inputcarrierassy2.jpg

 

Snap ring holding the front planets

inputcarrierassysnapring.jpg

 

Planets and internal input gear removed

inputcarrierassy.jpg

 

Here is the 2/4 anchor pin that holds the band

2-4bandpin.jpg

 

Continued...........................

Edited by 2BFAST (see edit history)
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Front planets removed from input gear

frontplanets.jpg

 

Reaction sun shell

reactionsunshell.jpg

 

Reaction shell removed

reactionsunshell2.jpg

 

Reaction sun gear removed

reactionsungear.jpg

 

Here is where the sun gear splines with the reaction shell. This is one of the many weak points in a 60E. Alot of times you will see the collar sheered off the shell

reactiongear-shell.jpg

 

Here is the low/reverse clutch support assembly, roller sprag and race, L/R clutch pack, and reaction carrier assembly (or rear planetaries). Also output shaft

low-reversclutchassy.jpg

 

Retaining ring removed

low-reverseclutchretainingring.jpg

 

Snap ring

low-reversesnapring.jpg

 

Continued........

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Roller race

low-reverserollerclutchrace.jpg

 

Sometimes the low/reverse assembly gets stuck in the case. Giving the end of output shaft a few hits will free it up.

tapoutputshaft.jpg

 

Pull out L/R

low-reverseclutchplateassy.jpg

 

......and the carnage begins

low-reverseassy.jpg

 

Here you can see the ring gear had got really hot

reactioninternalgear-burned.jpg

 

Toasted clutches and steels

low-reverseburnedclutches.jpg

 

Self explanitory

burnedclutches2.jpg

 

Got inspecting the rear carrier and found all 5 planet gears with chipped teeth. Damn it!

brokeplantetaries.jpg

 

brokeplanetaries2.jpg

 

Reverse input clutch assembly in the input drum

reverseclutchpacks.jpg

 

Continued..........

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Retaining ring

reverseclutchpacksretainingring.jpg

 

Reverse clutches and steels removed

reverseclutchpacks2.jpg

 

Now on to the input clutch assembly. Here is the 3/4 clutch backing plate retaining ring

1.jpg

 

3rd and 4th clutches and steels. Another weak point in the 60E. You can see the clutches are burned and the steels have got hot. Usually caused by shifting from 3rd to 4th at WOT in high horsepower applications, or towing.

3-4clutchpacks.jpg

 

You can see the clutches are burned and the steels are bad

3-4clutches.jpg

 

Input sun gear

foward-overrun.jpg

 

Continued.................

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Forward clutch backing plate retaining ring

forwardclutchretainingring.jpg

 

Sun gear again....

inputsungear.jpg

 

Forward clutches and steels

forwardclutches.jpg

 

Overrun backing plate, input sun gear bearing assembly, and overrun clutches and plates

overrun-inputsungear.jpg

 

Half way there. A special tool is supposed to be used to depress the overrun clutch spring assembly to remove the retaining ring.

overunclutchspringsnapring.jpg

 

Retaining ring...

clutchspringretainerring.jpg

 

Overrun clutch spring assembly

overrunclutchspringassy.jpg

 

Overrun clutch piston

overrunclutchpistonassy.jpg

 

Continued........

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Forward clutch piston

forwardclutchpiston.jpg

 

Forward clutch housing

forwardclutchhousing.jpg

 

3/4 clutch spring assembly

3-4clutchspringassy.jpg

 

3/4 clutch apply ring

3-4clutchapplyring.jpg

 

Finally the 3/4 clutch piston

3-4clutchpiston.jpg

 

Another weak point in a 60E where the input shaft and input housing are joined the sleeve shatters damaging the shaft and housing

inputhousing.jpg

 

Now on to the oil pump. Only reason for disassembly is to clean from bad fluid and debri from the damages above.

pump.jpg

 

Remove pump cover bolts

pump2.jpg

 

Continued.......

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Remove pump cover (left) from pump body (right)

pumpdisassemble.jpg

 

Remove the pump slide inner and outer springs. These have tension on them

pumpslideinner-outersprings.jpg

 

Upper pump vane ring

rotorring.jpg

 

Rotor guide

rotorwasher.jpg

 

Here is the oil pump rotor and its vanes that will fall all over the place. As well as the pump slide

rotor-vanes.jpg

 

Lower pump vane ring

bottomring.jpg

 

Pivot slide pin and spring

pivotslidepin.jpg

 

Oil seal (slide to wear plate) ring

slidering.jpg

 

Continued...........

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Slide seal back - up o-ring seal

o-ring.jpg

 

Oil pump reverse boost valve retaining ring (and yes I did use snap ring pliers to get the snap ring out, not the screwdriver)

reverseboostvalveretainingring.jpg

 

Boost valve sleeve

boostvalvesleeve.jpg

 

Boost valve

boostvalve.jpg

 

Pressure regulator isolator spring and pressure regulator valve spring

regulatorspringandisolaterspring.jpg

 

Pressure regulator valve

pressureregulatorvalve.jpg

 

Converter clutch valve retaining ring

conveterclutchvalveretainingring.jpg

 

Stop valve

stopvalve.jpg

 

..and converter clutch valve

converterclutchvalve.jpg

 

 

Continued.............

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Converter clutch valve inner and outer springs

converterclutchinnerandouterspirngs.jpg

 

pump cover screen

oilpumpcoverscreenandseal.jpg

 

Pressure relief bolt rivet

pressurereliefboltrivet.jpg

 

Pressure relief spring. This is also under tension

pressurereliefspring.jpg

 

Pressure relief ball

pressurereliefball.jpg

 

 

Thats all iv got for now. I still have to get the low/reverse spring and piston out of the bottom of the case and finalize my parts list.

 

Stay tuned!

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Looks like you're doing a very good job. Excellent choice of parts for your build. Odd that you burned up a Low/Reverse set of clutches. Those are very rare to have fail. Either way, great pictures and great choices on parts. I currently have a few apart at work and one of those is a top notch type build as you are doing for a GTO with a 500RWHP 402 inch setup with a 250 shot to go with it. Thanks for posting pictures like this, it's alot of work and you are doing a great job with it. I might post some of mine one of these days.

 

:cheers::peelout:

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