Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#11
05-22-2015, 11:28 PM
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Re: More Chevelle updates
Trans mount is in.
Crossmember is under the car (but not bolted down to the frame yet). Speedo adapter is in. The new Mark Williams 4" X.083" wall drive shaft has been ordered. The new center-to-center length with the MW 39006-1 pinion yoke is 56.125". That gives a critical speed rating of ~7250 rpm which is good for just over 130 mph with the existing 4.56 gears and just a tick over 160 with the up-coming 3.73 geared 12 bolt. I don't foresee any more driveshaft issues on the horizon at this point. More later. 
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