How do I change shift points in a '94 4L60E (GMC c1500 4.3)? I want to tweak the 3-4 shift up so that when I put my foot down climbing a hill it won't upshift until I back out going down the other side. It hunts gears on the freeway 60-70 mph :mad1:
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How do I change shift points in a '94 4L60E (GMC c1500 4.3)? I want to tweak the 3-4 shift up so that when I put my foot down climbing a hill it won't upshift until I back out going down the other side. It hunts gears on the freeway 60-70 mph :mad1: