Correct, some had the DRAC built into dash and some had an external box. In dash had a chip/resistor you could change that is no longer available. But the external has jumpers that can be changed or a Dip switch installed.
Correct, some had the DRAC built into dash and some had an external box. In dash had a chip/resistor you could change that is no longer available. But the external has jumpers that can be changed or a Dip switch installed.
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
Welp, TIL! I wish I had signed up here sooner; I was pulling my hair out back during the swap.
The manual also goes over what is in the cal plug deally that goes into the back of the dash too. I cant remember off hand how it worked (it's just a crappy 8pin device). I'll be down this route again when I find a set of 3.21 gears for the 14bolt though.
1990 GMC C1500, 5spd, 1993 LT1 (ECM 16159278 $DA3)
Bookmarks