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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 2004 Posts: 1,897 Shop Shark | | Shop Shark Joined: Dec 2004 Posts: 1,897 | An OD transmission swap is another way to crack the 45 mph barrier. You will likely also have to swap a full pressure 235 for your tired 216 to get the benefit of OD.
The 1 ton may have 5.13 gears, so switching to the higher 4.56 3/4 ton gears may give you some improvement. Double check the actual ratio, and play with the online gear calculators to see what rpm your truck is spinning at current speeds. | | |
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