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Mod | | | Forums66 Topics128,195 Posts1,057,374 Members48,469 | | 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: Jun 2010 Posts: 301 'Bolter | | 'Bolter Joined: Jun 2010 Posts: 301 | Has anybody here had any luck talking to a machine shop to make a run of ring and pinion gears for 3600's for highway use? I live by a machine shop and know the owners son through our mutual interest in Hurst Olds and 442's. I've been thinking of approaching him but if someone else has made some headway already please let me know. How many on here would be buy a set if the price was right...and what would be an acceptable price to you? And what gear ratio would most like to have? I would need to be able to give him numbers so he could decide if it was feasable.
1949 Chevy 3600
1975 W-25 Hurst Olds
1970 GMC 1/2 ton Fleetside
2010 Chevy Silverado
| | | | | Joined: Mar 2008 Posts: 1,775 'Bolter | | 'Bolter Joined: Mar 2008 Posts: 1,775 | Check out Denny Grahams post in the section, "Taint no such thing as new 3.90 or 4.10 gears." It has about all the information you need. Another idea is swapping the rearend. Many 'bolters have swapped in later model Dana 60's and 14 bolts. | | | | | Joined: Jun 2007 Posts: 20 'Bolter | | 'Bolter Joined: Jun 2007 Posts: 20 | I sent you an PM about an 4.11 rear axle section | | |
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