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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: Dec 2015 Posts: 2,063 Big Bolt Forum Moderator | | Big Bolt Forum Moderator Joined: Dec 2015 Posts: 2,063 | if they are both SM420 transmissions, it should bolt up. I am not sure if the 48 had an open drive shaft or not. You may need to change the rear bearing retainer plate that also holds the park brake. | | |
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