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64shortbox · 03-06-2015, 01:12 AM

If you're thinking about changing ratios a couple of times and you have welding skills or know a good friend that does another option might be to use a Ford 9" rear end. Our early Chevy Truck rear ends are 62" wide from WMS to WMS (wheel mounting surface) A 57 -72 Ford F100 rear end is 61.25 inch4e wide WMS to WMS. So is a 60 -64 Ford Full Size car, 71-73 Mustang & 67-73 Torino, Ranchero & Fairlanes are all also 61.25" WMS to WMS. Or 3/8" narrower than our early C10's. That way if you want to change rear end ratios from 3:08's, 3:25's 3:73's etc. just drop out the pumpkin and swap them out. The down side is you will need to cut off the Ford perches and weld on perches for your C10, you will need to have your axel shafts redrilled to a 5 on 5 pattern and most likely need a different U joint to match the Ford rear end.

03-06-2015, 01:12 AM	#7
64shortbox Registered User Join Date: Jan 2011 Location: Tulare, CA Posts: 735	Re: 65 C10 differential swap questions If you're thinking about changing ratios a couple of times and you have welding skills or know a good friend that does another option might be to use a Ford 9" rear end. Our early Chevy Truck rear ends are 62" wide from WMS to WMS (wheel mounting surface) A 57 -72 Ford F100 rear end is 61.25 inch4e wide WMS to WMS. So is a 60 -64 Ford Full Size car, 71-73 Mustang & 67-73 Torino, Ranchero & Fairlanes are all also 61.25" WMS to WMS. Or 3/8" narrower than our early C10's. That way if you want to change rear end ratios from 3:08's, 3:25's 3:73's etc. just drop out the pumpkin and swap them out. The down side is you will need to cut off the Ford perches and weld on perches for your C10, you will need to have your axel shafts redrilled to a 5 on 5 pattern and most likely need a different U joint to match the Ford rear end.