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gears??

753 views 5 replies 4 participants last post by  cartmanea 
#1 ·
I have an 03 7.3 dually that im getting ready to lift 6'' have the lift and looking to put 315s for tires. So I have 4:10 gears how bad will this throw off my power? what gears should i go with if need to change? also its an auto trans.
 
#4 ·
I would say to leave it alone. I ran 4.10's with 36" tires and it was perfect. I was 1980rpm @ 70.

If you wanted to be anal about it, you would need to find a set of 4.30's out of a V10 truck to put it virtually to stock.
 
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