View Full Version : 25 pounds unsprung pounds vs. 500 dollars!!??

02-02-2003, 04:10 PM
chev12bolt or ford 9 inch ,ordering diff. tomorrow from saving 25 pounds dead weight worth 500 as 12 bolt will be strong enough? please help with advice , thks.

02-02-2003, 04:37 PM
Are you road racing or drag racing?

The unsprung weight is more critical in the road racing. For drag racing, any weight is important. Also, the 9" has a greater pinion angle which means more frictional loss.

I'd say, that unless you're pushing some BIG power & running slicks, a well built 12-bolt should be fine.

Gordon (

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02-03-2003, 03:38 PM
If your picky and like to do different gear combos and set up your own gears. Then the 9 inch is the way to go.