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Old 08-12-2010, 09:46 AM
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50 Chevy truck rear end width?

My son and I are in the midst of our first frame up resto-rod. We're having a shop cut/build a 12 bolt rear end for our 50 Chevy truck. I want to make sure we have enough room for 18x10's in the rear and 17x8's in the front with 285/50/18's in the rear and 245/50/17's in the front. How wide should we have them make the rear end? The stock axle was 62.25" wheel mount to wheel mount. I was thinking about 60" but am not sure. I appreciate your 2 cents...

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Old 08-12-2010, 11:07 AM
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Not enough info for a correct answer ...

You need the measurement of the offset of the wheels ( mounted with the tires )

The best way is to mount the wheels/tires on the rear end of your choice and then measure the overall width. Then after measuring the width between the inner fenders on the vehicles in question ... subtract the vehicle width from the TOTAL rear width ( with the tires/rims bolted on ) .

Then subtract about a 1 to 2 inches per side ( clearance ) to get the width the total width of the rear end.

Subtract the rear end width from the inner fender width. That is how much the rear end needs to be narrowed.

NO way would I spend a TON of cash on a 12 bolt when you can buy a 9 inch Ford ... already narrowed ... for less money.



The 9 inch Ford is stronger, easier to work on and easier to find parts for.
Better looking too ... IMHO

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Old 08-12-2010, 11:40 AM
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Thanks for the info. I was looking for an estimate/short cut from someone with a similar set-up since the truck is totally disassembled right now. I'm working form a zero offset perspective and am waiting to buy the wheels in case I need to adjust despite my best laid plans.
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Old 08-12-2010, 01:49 PM
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Deuce is correct. You are going to need to know your offset ahead of time. With the tires you're wanting to run...they are going to be a little over 11" at the widest point so correct placement in the wheel well is going to be critical. You can buy new wider rear fenders or modify your old ones for more room. I just put adapters on mine to get more space between tire and bed side. With those tires you might need to go a little wider on the rearend IMO. Good luck.

Barry
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