Quote Originally Posted by buddrow View Post
Just to put this out there, I have about 15-20 DRAC modules of varying codes (QWB,etc) I'll let go for shipping cost. I run a trans shop and don't see as many of these failing as we used to lol.
If you still have some DRAC modules I would like to get one from you if possible. I tried modifying mine with a 7 pin DIP switch (8 pin but 7 pins used) but I could not adjust out the speed enough, so thinking that maybe mine is not working right. I replaced the VSS (cheap cost) but speedometer readings stayed the same. I read that the ground could be an issue but checked it and it looked good, no corrosion (actually it is a double ground). It is for a 92 Suburban K2500 454 engine with TBI. The module I have has the 7 jumpers instead of the 2 rows of jumpers.