My 94 full size blazer has different gear ratios from the front to the back someone changed the front axle before I got the truck number stamped on the front differential is 2603323-4 does this help?
That part number *should* help, yea... I would have your local Chevy/GM dealer run that part number (assuming it's GM equipment) and they can probably give you the info. Make sure you have that Part Number ready along with the VIN off of your vehicle...
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