REDL98C4

Ok C4 experts, How do I tell the Diff between these two Diffs? Got a chance to buy a '90 parts car with a six speed and what I guess is a Dana 44. I can't be sure about the rear end, as old as the car is it may have been swapped out at some point. Thanks in advance for any help!

MyOtherCar

I read in a forum thread one time that if you aren't sure if you have a 36 or a 44, then take it out and flog it unmercifully. If it breaks, it is a 36, if not, you've got a 44.

Seriously, they are able to be told apart by the bolt patterns. Get Bing up on your screen and type in "Dana Differential in C4 Corvette, image". Should take you to a series of pics that will show you the difference. The link I got is:

http://www.bing.com/images/search?q=...EF&FORM=IQFRBA

Good luck

WVZR-1

A D-36 has three bolts across the top of the rear cover and the D-44 does NOT have one at the center location. A '90 could be a good find with the 3.33 ratio (GT7). You could take the VIN if known to a GM parts dept. and ask that they inquire it for you if the SPID label is missing from the console lid for "as built" information. A GH0 (3.54) is possible also.

toptechx6

aklim

http://www.joby.se/corvette/mods/2001-0X11_diff/