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Old 01-07-2013, 09:27 AM
Peepaw Peepaw is offline
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4L60E 3-4 clutch pack clearance question

Hey guys, quick question. Doing a 4L60E rebuild, and everything is going good until I checked clearance on the 3-4 clutch.
The ATSG manual says it should be .060-.085".
When I got this one together, it came up as .045". According to ATSG manual, it's too tight. However, I put OLD clutches/steels back in, just as a comparison, and came up with .060" and the clutches were WORN out. Going by that, and assume the clutches were a wee bit thicker when new, figure it was setup probably around .040-.045". Going by that, those numbers don't add up.

So, hopped on internet, came across a few forums, and I have seen anywhere from .010" up to .075". Obviously, a BIG difference.

So, figured I would ask you guys and see what you all had to say.

Also, this is a factory 6 clutch pack out of a late 99/early 00 LS1 Camaro (build date of may 99).

And while we are at it, the ATSG also says, in order, after the forward clutch backing plate retainer ring:
3rd and 4th clutch ring retainer plate (with the legs that drop down)
3rd and 4th clutch apply (stepped) plate
3rd and 4th clutch plate (steel)
then of course fiber, steel, fiber steel, etc..
3rd and 4th clutch selective backing plate
3rd and 4th clutch backing plate retainer ring

OK, so if you go by the above, this trans is TOTALLY different.
It didn't have the "stepped" apply plate, and it didn't start with a steel. How this trans came apart, after the forward clutch backing plate retainer ring was the following:

3rd and 4th clutch ring retainer plate (has the legs that drop down on it)
clutch
steel
clutch
etc...for a total of 6 clutches, 5 steel (plus the 1 retainer plate on bottom, and the1 backing selective plate up top)

So, you can see my concern. ATSG manual is giving me a different setup than what I have, so Im now concerned over my clearances on not only the 3-4 clutch pack, but EVERYTHING else now as well (even though up to this point, all my clearance came out to what ATSG said they should be).

OK guys, thanks for the help.
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