I have a 90 Ram W150 with stock 318. It has 33x12.50 tires and a 4" lift. It is having a hard time at 70 with OD on and was wondering if I should regear it. The rear end is needing rebuilt anyways due to rear end slap. I was thinking of to a 3.90 from a 3.55 but I have read to go to 4.10. Any advice would be appreciated.
Sun, 06 Mar 2022 23:34:13 +0000---------------------------------------------------------------------------
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