Longevity Of A 5.3

[Jimbo0076]

Originally Posted by clinebarger

Ask if the transmission has been rebuilt. 166K whouldnt scare me on the engine.

If the transmission hasn't been rebuilt(which it hasn't)should I be worried about it going out in the near future? Me<--definitely not a auto trans man Gimme a manual trans and I can work on them half decent..autos blow my mind Thanks for the info guys

[clinebarger]

Originally Posted by Jimbo0076

If the transmission hasn't been rebuilt(which it hasn't)should I be worried about it going out in the near future? Me<--definitely not a auto trans man Gimme a manual trans and I can work on them half decent..autos blow my mind Thanks for the info guys

After 200K your on borrowed time with a 4L60E. Based on my experience 150K is the average life span. Not to scare you....but for a bargaining chip.

[Jimbo0076]

Originally Posted by clinebarger

After 200K your on borrowed time with a 4L60E. Based on my experience 150K is the average life span. Not to scare you....but for a bargaining chip.

Thanks for all the info hoss! Sorry to keep asking the newb-ish questions BUT if the ole 4L60E decided to spit its guts would there be any 100% certain upgrades to make on em...or a rebuild kit that had certain stronger internals to keep at when pricing getting a rebuilt one. Reason for asking is because in my area I haven't found a transmission guy I'd trust to work on my bicycle let alone my truck or give me advise on my other projects though the years

[clinebarger]

Originally Posted by Jimbo0076

Thanks for all the info hoss! Sorry to keep asking the newb-ish questions BUT if the ole 4L60E decided to spit its guts would there be any 100% certain upgrades to make on em...or a rebuild kit that had certain stronger internals to keep at when pricing getting a rebuilt one. Reason for asking is because in my area I haven't found a transmission guy I'd trust to work on my bicycle let alone my truck or give me advise on my other projects though the years

The best upgrade is a good rebuild by someone that takes pride in his work, not so much about buying upgraded parts. As far as upgrades on a stock truck....Hardened sunshell, 9 3-4 clutches, hardened separater plate, replace any plastic servo/accumulator pistons with cast aluminum ones, Transgo shift kit.

[usmcchevy]

I'll agree with the 5.3 lasting a long time (3-400K) and anything over 150K on the 4L60E being borrowed time.