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Old 09-17-2020, 01:12 AM   #12
55blacktie
Senior Member
 
Join Date: Aug 2020
Posts: 442
Default Re: Dana 44 2.72:1 ring & pinion

Dana 44 2.72 ring & pinion gears are no longer made. Several years ago, I searched all of the U.S. for a set. I was ready to end the search, when I found a used set at a differential shop in my home town. It was a matched set that came out of an 80s Corvette.

There is an ebay seller, who has a set of Dana 44 2.72 gears and carrier that came out of a Jeep Cherokee. He's asking $255. You won't need the carrier. Make sure the gears are standard rotation. High pinion gears have a reverse rotation. Fortunately for me, Corvettes are rear-wheel driven. I had 2.72 gears and Auburn limited-slip differential installed in my 1955 Ford Thunderbird Dana 44 rear axle. It's not on the road, yet, but with 26.9" diameter tires, RPM at 65 mph is calculated to be just over 2200, 600 rpm less than the OEM 3.31 gears. 2.72 is a good highway ratio if you don't have overdrive, but not good if you have a camshaft that has a lot of duration.
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