Quote:
Originally Posted by John Boothby
Rock Auto emphatically told me that the SC8 was the one for the ZR-1. They look the same.
|
John, I have done some more homework on the issue - you are right (but also hopefully wrong). The 25007308 (SC8) was installed for 90 corvettes with 3.45 rear ends i.e. ZR-1 (and for 3.07 and 3.33 ratios). The 25007224 (SC6) was installed for 90 corvettes with lower rear end ratios (2.59 and 2.73). There were about 5 sources I could find for the 25007308 (including the S.M.P. - SC8) - but they are ALL no longer available.
The SC6 is almost identical to the SC8 - from what I have been able to learn, the ONLY difference is the offset in the shaft that the driven gear mounts on. I understand the SC6 can be used and function 100% identical to SC8 if it is installed 180 degrees rotated (connector lock tab position reversed) to position the gear mounting shaft so that it has the same offset as the SC8.
I will find out soon enough and report.