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| | | Forums66 Topics128,088 Posts1,056,109 Members48,434 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Mar 2004 Posts: 6,214 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 6,214 | At this point I'm only looking for info on compatibility. I've never done this with a Corporate Rear, but did do it with a Eaton. The only difference I had in those two was the ring gear was taller on the 2-speed and I needed a small slot ground out of the bolt flange surface so the ring gear would slide in the opening. I confirmed it would fit by drawing a picture showing each mounting bolt/stud and then measuring between every bolt and compared. If they all work out it should fit. I also made 2 long install studs out of concrete anchor bolts found at HD or Lowes with the ell's cut off to guide the pumpkin into the housing. I did it all with the truck sitting on the floor using just a floor jack...the entire job only took an hour or two. You will need to shorten the drive shaft as the 2-speed is longer (yoke to mounting surface) than the single speed. Mike B  | | |
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