Kc 1932468
New Member
Hello. I built my twin turbo tahoe 7 years ago. And I recently burnt up my transmission. So i rebuilt it and as an added precaution I lowered my gear ratio to 4.56's and I need to recalibrate my (Vssb) to get my speedometer to read right. It is currently reading 10 mph faster than im actually going. I've found other threads but when I've moved the jumpers acording to the on line calculations nothing happened its still reading 10 mph to fast. Im guessing im missing a step some how? A little help please anyone? Thanks