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what is a good gear ratio for swaps on the diff in a M1008 CUCV PU?

ssdvc

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Add an overdrive unit, as I believe, when all is said and done, the cost is the same. If I was doing gears on the stock 08, I'd probably look at a around a 3.50/3.70's set, just to get the rpms's down, but keep it easier for acceleration. Just my 2 cents.
 

Keith_J

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Lots of work to swap two ring and pinions as new carriers are required.
A 25% overdrive is equivalent to 3.42 axle ratio, a good improvement as it puts engine speed at 2400 RPM at 70 MPH.
 
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