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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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#45587 11/24/2004 12:53 AM | Joined: Nov 2004 Posts: 13 Junior Member | | Junior Member Joined: Nov 2004 Posts: 13 | I found a ring and pinion set that were out of a 69 half ton. It is a 3.73 twelve bolt set. I have read the archieves and found that some chevy 12 bolt rears had this ratio. will this work in a 54 3/4 ton 12 bolt rear? Do I need the carrier from the newer truck or can I make these work with the 54 carrier? | | |
#45588 11/24/2004 5:37 AM | Joined: Jun 2003 Posts: 565 'Bolter | | 'Bolter Joined: Jun 2003 Posts: 565 | I believe you can swap the pumpkin from a later model into your truck but it has to come from a 3/4 ton. I dont think you can use a 1/2 ton. Others who know more about this than me(almost everyone) may answer your question better.
Good luck.
"Do not walk behind me, for I may not lead. Do not walk ahead of me, for I may not follow. Do not walk beside me either. Just leave me alone, you're starting to freak me out."
1957 GMC 150
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#45589 11/25/2004 12:09 AM | Joined: Nov 2001 Posts: 481 Shop Shark | | Shop Shark Joined: Nov 2001 Posts: 481 | jmoore is correct. The 1/2 ton pumkin won't interchange with the 3/4 ton. A 67-72 3/4 ton pumkin will swap into your rear end. The best ratio is 410, usually found in a truck with an automatic transmission. | | |
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