Quote:
Originally Posted by billybaloneey
Are there any differences, outside or internal, in a base model C4 and a ZR-1 ZF transmission. In other words can a 9x base model C4 ZF transmission be interchanged with a 9x ZR-1 ZF transmission? What year ZF's are compatible with each other?
Thanks
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The ZF6 for the base C4 has a different length input shaft, otherwise the internals are the same.
So to answer your question, yes the ZF's are interchangeable...
But....
There are "Black Tag" and "Blue Tag" versions.
And later model ZF's have slightly different exhaust hanger setups, as well as a different plug on the speed sensor.
Here's more info that you're going to want or need, but here it is.
I did a lot of research when the 2nd gear synchro went out.
http://www.zr1netregistry.com/forum/...t=transmission
Let me know if you need any help, tips, ideas, etc.
TomC
"Crabs"