Are 4L60E year specific?

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Jan 5, 2011 | 10:51 AM

mille_3

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From: ND

Are 4L60E year specific?

I have an '06 LQ4 that I'm trying to find a 4x2 transmission for. My understanding is that any 99-06 transmission will bolt right up with no issues. Is that right? Motor originally had a 4L80E 4x4 bolted to it.

Are the internals the same on the trannies that were used on the 4.8 and 5.3 motors?

Jan 5, 2011 | 11:27 AM

gofastwclass

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From: KCMO

The wiring is different between the 4L60E and 4L80E. If you have the "short crank" engine they are a bolt in swap as long as you have a transmission from a Gen III / IV engine. If you get a V6 variant the input area is different and is setup for the depth of the old Gen I / II small block and will require a spacer on the crank snout.

Happy hunting.

Jan 5, 2011 | 03:09 PM

mille_3

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From: ND

Thanks for the clarification.

Jan 5, 2011 | 03:23 PM

deuce4935

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Even better thought would be to find a 4l65e from a 4x2 truck(03+) then you dont have to worry about fitment issues, and its built stronger than the 60e.

Jan 5, 2011 | 03:38 PM

mille_3

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From: ND

Quote:

Originally Posted by deuce4935

Even better thought would be to find a 4l65e from a 4x2 truck(03+) then you dont have to worry about fitment issues, and its built stronger than the 60e.

What's the difference between the two? And it shouldn't matter if it sat behind a 4.8, 5.3 or 6.0 should it? Internals should be the same shouldn't they?