Would a stock 4L65E with only transgo shift kit live behind mild 427ci engine in a 4300Ibs 4x4 Chevy RCSB truck for street use only?

Also, what does it take to swap a built 4L60E from F-body to the truck?

 

I don't know bout the F-body to trk, as to what it takes.
IMO, I don't have much faith in the 60e. Ya, I know the 65e has 5 pinion planets that help the 65e last longer than 60e does.

If u plan on beatin on that 427, I think the 65e will...
In a F-body, they're lite vehicles. A truck's weight seems to kill our trannies rather easily.

 

Might swap the internals of the built f-body 4L60E, actually it's 4L65E RPM level 5, into the truck transmission.

 

prediction - BOOM
Solution - 4l80e (built)

 

He's got a show queen, he doesn't know.
J/k, but prolly true. Pow!

 

Tick, Tick, Tick...... undetermined time frame....... BOOM!

 

I like to push the 60/65E's for all their worth, but my prediction...

 

heres what youre doing...

drive down the road at a high rate of speed,

stand (facing forward) on the hood of said vehicle

begin to ****

see results...



-put an 80E in that thing and do yourself a favor, all you'd be doing is making more work by putting even a built 60/65/70 in it. Yeah, theres a little more to the swap than the 2WD guys, but theres a solid writeup on the 4WD 80E swap... its not all that bad.

 

 

Nope!

Been there, Done that, Lost my shirt tryin!

go 4L80. best advise.