4L60E maintenance?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

nitro498

TYF Newbie
Joined
Apr 2, 2020
Posts
10
Reaction score
5
Bought a cheap fixer-upper 07 Tahoe with 250K On the odometer. The engine is getting freshened up. My question concerns the trans, a 4L60E. As far as i know there were no problems concerning the trans.

Other than replacing front/ rear seals what maintenance Should I perform to this transmission?
 

wsteele

Full Access Member
Joined
Dec 26, 2020
Posts
1,731
Reaction score
2,346
I would drop the pan, drain the fluid that will drain in that procedure and replace the filter. Change it again at 25-30K and 30K thereafter. :)

 

Geotrash

Dave
Supporting Member
Joined
Feb 16, 2018
Posts
5,495
Reaction score
12,986
Location
Richmond, VA
Bought a cheap fixer-upper 07 Tahoe with 250K On the odometer. The engine is getting freshened up. My question concerns the trans, a 4L60E. As far as i know there were no problems concerning the trans.

Other than replacing front/ rear seals what maintenance Should I perform to this transmission?
Has it been rebuilt once already? I don't think I'd worry about those seals until they start leaking. The 4L60E is a good transmission but in my experience it's not as stout as the 6L80. I had one in my '02 Suburban, and it needed a rebuild at around 150K. I sold it to a friend and he has 280K on it now and it's getting ready to need rebuilding again (slipping). My '07 XL Denali with the 6L80 has 220K on the original transmission now, with a fair amount of it towing.

If I were in your shoes, I'd do the maintenance @wsteele suggested and set aside some money in a Capital One savings account for transmission repair/rebuild when the time finally comes. If it never does, you can put it toward a down payment on your next one. :)
 

Rocket Man

Mark
Supporting Member
Joined
Dec 25, 2014
Posts
25,961
Reaction score
50,621
Location
Oregon
Has it been rebuilt once already? I don't think I'd worry about those seals until they start leaking. The 4L60E is a good transmission but in my experience it's not as stout as the 6L80. I had one in my '02 Suburban, and it needed a rebuild at around 150K. I sold it to a friend and he has 280K on it now and it's getting ready to need rebuilding again (slipping). My '07 XL Denali with the 6L80 has 220K on the original transmission now, with a fair amount of it towing.

If I were in your shoes, I'd do the maintenance @wsteele suggested and set aside some money in a Capital One savings account for transmission repair/rebuild when the time finally comes. If it never does, you can put it toward a down payment on your next one. :)
Capitol One? Do you work for them or something?:crazy:
 

Geotrash

Dave
Supporting Member
Joined
Feb 16, 2018
Posts
5,495
Reaction score
12,986
Location
Richmond, VA
Capitol One? Do you work for them or something?:crazy:
Lol. No, but I do live in Richmond where they're based :) But I've used them for years since long before I lived in Richmond and there is one feature of their savings accounts that's absolutely awesome for me: Access to my money is *not* instant. There is a delay of a few days to have the money transferred to my checking account at my credit union, and that solves the issue of buying stuff immediately. By the time the money would hit my account, the urge has already passed. That = more savings :)
 

kbuskill

***CAUTION*** I do my own stunts!
Joined
Mar 11, 2017
Posts
5,213
Reaction score
8,068
Location
NE. FL.
Lol. No, but I do live in Richmond where they're based :) But I've used them for years since long before I lived in Richmond and there is one feature of their savings accounts that's absolutely awesome for me: Access to my money is *not* instant. There is a delay of a few days to have the money transferred to my checking account at my credit union, and that solves the issue of buying stuff immediately. By the time the money would hit my account, the urge has already passed. That = more savings :)

This reminds me of the guy who went to his doctor because he had a bad cough.

The doctor prescribed him a strong laxative.

He asked the doctor if that would really cure his cough and the doctor said "it won't help your cough at all, but you will be afraid to".
 

CaptainAmerica1

Full Access Member
Joined
Jun 14, 2020
Posts
879
Reaction score
1,393
Location
Arlington TX
Drop the pan.
Change the fluid.
While you have the pan off and iff you feel comfortable, consider swapping the accumulator pistons with sonnax pinless pistons, rebuild the shift solenoids, replace the separator plate and swap the check balls with Imidize check balls, new separator plate gaskets, corvette servo, billet 4th gear servo.
Consider installing a trans cooler.
 
OP
OP
N

nitro498

TYF Newbie
Joined
Apr 2, 2020
Posts
10
Reaction score
5
Drop the pan.
Change the fluid.
While you have the pan off and iff you feel comfortable, consider swapping the accumulator pistons with sonnax pinless pistons, rebuild the shift solenoids, replace the separator plate and swap the check balls with Imidize check balls, new separator plate gaskets, corvette servo, billet 4th gear servo.
Consider installing a trans cooler.
Thx Captain. Is there a kit that includes most of the parts you mentioned?
 

OR VietVet

Multnomah Falls
Supporting Member
Military
Joined
Oct 8, 2014
Posts
19,076
Reaction score
31,186
Location
Willamette Valley
Lol. No, but I do live in Richmond where they're based :) But I've used them for years since long before I lived in Richmond and there is one feature of their savings accounts that's absolutely awesome for me: Access to my money is *not* instant. There is a delay of a few days to have the money transferred to my checking account at my credit union, and that solves the issue of buying stuff immediately. By the time the money would hit my account, the urge has already passed. That = more savings :)
Before giving all this money wisdom, did you happen to "Sleep at a Holiday Inn Express" the night before? :cool:

Like has been said, drop the pan and inspect the fluid for debris and any metal and change the filter and add fluid to top off and check fluid level again after a road test. If that trans has not been built before, did you get a CarFax?, it may be close and start saving. Hell, it may look pristine when you get in there. Good luck.
 

Forum statistics

Threads
128,802
Posts
1,805,634
Members
91,784
Latest member
navyboy14094
Top