Re: 89 2500 Transmission/Rear End Questions
I think you have the 4:10 gears with a nv-4500 trans its extreamly rare for gm to put 4:56 gears behind a 350 motor but another kinda easy way to see what may be in it is by the design of the rear end is it a corpret 14bolt rear or a simi flow 14bolt rear
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