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| | | Forums66 Topics128,181 Posts1,057,187 Members48,465 | | 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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Feb 2004 Posts: 336 Shop Shark | | Shop Shark Joined: Feb 2004 Posts: 336 | I currently have 8 lug 4.10 posi in my 66. I now have the chance to purchase a 6 lug 3.54 posi.
Will this swap give me a significant speed increase? And can I change out the gears to increase the speed even more.
I currently have an NP435 trans (reverse on passenger side) | | |
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