Reading some other post I understand when I go to MT 285 75 16 on my stock 4x4 that I can have computer adjusted for the speedo and tranny shifts. Any info would be apreciated.
thanks GMC

Sorry I have a 96GMC K1500 reg cab 8ft bed 4X4 non z71 Vortec 305 Auoto tranny.
gmc29

There are a couple of items that can adjust the computer for you. The first can be found in the summit racing book and will adjust the spedo only. The second way is to purchase a Hyper Tech Power Programer - It will change the spedo and shift points along with a number of other performance items.

98 4x4 Z71 350

Check at your local dealership. Some places it is expensive, and other places it is cheap. They fix it so everything is corrected, not just the speed. If you don't want that, try looking for a speedo and tach shop in the area. They are usually more expensive, but they do good work. Hope this helps.

1992 Blazer Sport, 350 TBI, Gibson 3" cat back, 4L60, K&N, Rancho 3" lift, 285/75R16's on 16x8 Bajas

Two places I would go to...Hypertech for the computer re-programmer. Second place is superlift. They have VSSB's..(Vehicle Speed Sensor Buffers) to match up to gear/ tire combos other than stock. This will solve any problems bigger tires might cause

Rhino

I didn't think you could use VSSBs on 96 and newer trucks. Can you?



Harmsie