Thread: Posi Rear
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Old 07-30-2016, 06:46 AM
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Cobra Make, Engine: BDR #260 w/ 347 stroker, Canfield 195 cc heads, prosystems carb on a VicJr, Comp roller cam
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Quote:
Originally Posted by Bill Bulmer View Post
Thanks Tamanaco, great to know, as I wasn't sure if it would still cruise comfortable on a fast highway sped of around 75 (my usual hwy speed) with the 3.91. I assume the pickup is even better and with both tires hooking up, it really takes off.
One thing I did not mention in my final transmission ratio of 0.062 = about 1800 rpms at 60 MPH...you should have an overdrive (OD) transmission for this diff. gear ratio if you plan on doing any highway driving. I guess I was assuming an OD trans in your car.
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