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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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| | | | Joined: May 2013 Posts: 30 'Bolter | | 'Bolter Joined: May 2013 Posts: 30 | Can someone tell me the bolt pattern and distance center to center of holes top and bottom on 1958 chevy truck transmission 261 6 cylinger.
Thanks for help | | | | | Joined: Dec 2004 Posts: 1,897 Shop Shark | | Shop Shark Joined: Dec 2004 Posts: 1,897 | The following link should help. All chevy and gmc trucks had this bolt pattern from 1948- 1967 ish. Passenger cars also got this pattern sometime in the 1950s. Gm continued to use this pattern through the 80s and 90s on certain moldels like the camaro, firebird, and s10 pickups. Some cars and trucks had the same bolt pattern, but a larger hole in the middle starting around 1967. http://www.allstategear.com/Breakdowns/Chevrole_%20Muncie_4_speed_Bolt_Pattern.jpgI assume this view is looking from the bellhousing toward the transmission... You will likely have to flip the measurements from left to right to get the bellhousing measurements. | | |
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