Replacing a 4L60E Transmission
Thread Starter
Tech Contributor
Joined: May 2008
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From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Replacing a 4L60E Transmission
I'm helping a C4 friend of mine replace the 4L60E transmission on his recently purchased '94 coupe.
Is there anything on a C4 to be especially aware of during the procedure?
Is there anything on a C4 to be especially aware of during the procedure?
Thread Starter
Tech Contributor
Joined: May 2008
Posts: 3,100
Likes: 17
From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
The rebuilt transmission will be delivered today, and we're installing it this weekend using a garage with a lift.
We don't have access to the factory service manuals, so any tips on doing the replacement would be appreciated!
We don't have access to the factory service manuals, so any tips on doing the replacement would be appreciated!
Drifting
Joined: Aug 2006
Posts: 1,624
Likes: 2
From: Canandaigua New York
Since the 4l60e shifting is electronically controlled, the only thing you have to do is take the old one out and put the new one back in. Just make sure everything is hooked up correctly.
You might want to consider getting a new torque converter as long as you have the tranny out.
You might want to consider getting a new torque converter as long as you have the tranny out.
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
This is the sequence I recall, hope it helps
Disconnect the negative battery cable (don’t skip this step)
Drop pan and drain transmission, reinstall, pan with a couple of bolts
Remove starter and flex plate cover
Remove torque converter bolts, push converter back
Disconnect shift cable and unplug wiring
Mark driveshaft and differential yoke for index
Disconnect drive shaft at diff, pry forward.
Secure U joint caps with electrical tape, then pull left and back
(may require bending heat shields to remove)
Support transmission with trans jack
Remove two C beam bolts at trans extension housing
Remove or loosen C beam bolts at differential
Pry trans to left to clear C beam and lower slightly (will take effort)
Disconnect trans cooler lines using flare wrench while holding trans fittings
Use a long extension and flex socket to remove bellhousing bolt holding fill tube, remove tube from trans by pulling up
Support rear of engine with separate stand
Remove remaining bellhousing bolts
Pry trans back to clear dowels and lower
Disconnect the negative battery cable (don’t skip this step)
Drop pan and drain transmission, reinstall, pan with a couple of bolts
Remove starter and flex plate cover
Remove torque converter bolts, push converter back
Disconnect shift cable and unplug wiring
Mark driveshaft and differential yoke for index
Disconnect drive shaft at diff, pry forward.
Secure U joint caps with electrical tape, then pull left and back
(may require bending heat shields to remove)
Support transmission with trans jack
Remove two C beam bolts at trans extension housing
Remove or loosen C beam bolts at differential
Pry trans to left to clear C beam and lower slightly (will take effort)
Disconnect trans cooler lines using flare wrench while holding trans fittings
Use a long extension and flex socket to remove bellhousing bolt holding fill tube, remove tube from trans by pulling up
Support rear of engine with separate stand
Remove remaining bellhousing bolts
Pry trans back to clear dowels and lower
Team Owner
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From: Riverside County Southern California
Co-winner 2020 C4 of the Year - Modified
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St. Jude Donor '09 thru '20
Using the FSM will allow you to find the answer that could take you half a day to find here.
Buy the FSM is worth every penny.
Thread Starter
Tech Contributor
Joined: May 2008
Posts: 3,100
Likes: 17
From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
This is the sequence I recall, hope it helps
Disconnect the negative battery cable (don’t skip this step)
Drop pan and drain transmission, reinstall, pan with a couple of bolts
Remove starter and flex plate cover
Remove torque converter bolts, push converter back
Disconnect shift cable and unplug wiring
Mark driveshaft and differential yoke for index
Disconnect drive shaft at diff, pry forward.
Secure U joint caps with electrical tape, then pull left and back
(may require bending heat shields to remove)
Support transmission with trans jack
Remove two C beam bolts at trans extension housing
Remove or loosen C beam bolts at differential
Pry trans to left to clear C beam and lower slightly (will take effort)
Disconnect trans cooler lines using flare wrench while holding trans fittings
Use a long extension and flex socket to remove bellhousing bolt holding fill tube, remove tube from trans by pulling up
Support rear of engine with separate stand
Remove remaining bellhousing bolts
Pry trans back to clear dowels and lower
Disconnect the negative battery cable (don’t skip this step)
Drop pan and drain transmission, reinstall, pan with a couple of bolts
Remove starter and flex plate cover
Remove torque converter bolts, push converter back
Disconnect shift cable and unplug wiring
Mark driveshaft and differential yoke for index
Disconnect drive shaft at diff, pry forward.
Secure U joint caps with electrical tape, then pull left and back
(may require bending heat shields to remove)
Support transmission with trans jack
Remove two C beam bolts at trans extension housing
Remove or loosen C beam bolts at differential
Pry trans to left to clear C beam and lower slightly (will take effort)
Disconnect trans cooler lines using flare wrench while holding trans fittings
Use a long extension and flex socket to remove bellhousing bolt holding fill tube, remove tube from trans by pulling up
Support rear of engine with separate stand
Remove remaining bellhousing bolts
Pry trans back to clear dowels and lower
I have a set of FSM's for my '01 C5.......absolutely worth every penny.
The '94 that we're working on is a friend's recent purchase.
Race Director
Joined: Sep 2003
Posts: 16,836
Likes: 337
From: Database Error Indiana
The hard part is getting the exhaust out of the way. 94 has huge cats and the supports are held by the bellhousing bolts. I think there is a trick to it but cant remember, its been a year.
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Safety Car
Joined: Jun 2006
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From: FL
Thread Starter
Tech Contributor
Joined: May 2008
Posts: 3,100
Likes: 17
From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
Thread Starter
Tech Contributor
Joined: May 2008
Posts: 3,100
Likes: 17
From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
