I need a new transmi\I ssion for my 1991 GMC Sierra 4x4 but I am not
sure what type. I have been told that I can use a 700R4 or a 4L60 but
I am not aware if there are different variations of the two and if so
On 27 May 2007 11:17:58 -0700, firstname.lastname@example.org wrote:
A 91 would use a 700R4. You want a 85 or later one with a 30 spline
input shaft. The 4L60 is basically the same tranny except it has a
electronic valvle body while the 700R4 does not. The cases are the
same at bolting flanges.
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