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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: Sep 2013 Posts: 8 New Guy | | New Guy Joined: Sep 2013 Posts: 8 | Hi, I finally doing something about my project and I am pumped. I know exactly what I want it to look and sound. My 66 pickup will soon be having an engine rebuild and Im considering having the 3 speed put on the floor. I'd like to have the engine juiced up and I figure the floor shifter would make for faster shifting. Would there be anybody with advice on this matter?
WolfeCustom
Built this Chevy on Rock'n'Roll
| | | | | Joined: Apr 2010 Posts: 362 Shop Shark | | Shop Shark Joined: Apr 2010 Posts: 362 | My last 3 trucks 55,56 and 57, back in the late 70's had the 3 speed with an after mkt shifter on the floor. I used the old tried and true original 3 speed transmission that came in the and they latterly caught hell. So yes it's done and will work.
O yeah I'm going to do it again with my 58 gmc. This time I'll give it a little more hp than the old 283s that I use to use. Larry
Last edited by LarryW; 12/07/2013 12:10 AM.
58 gmc 100 with 350 sbc
| | | | | Joined: Nov 2002 Posts: 1,002 Shop Shark | | Shop Shark Joined: Nov 2002 Posts: 1,002 | I wouldn't use the SM318 behind any thing much more than a 283 unless your very easy on the pedal. I replaced the sliding gear 2 or 3 times in a 64 Impala with a stock 300hp 327. I'd look for a latter all synchro 3spd. If you still have the stock rear axle find one with the overdrive.
Larry
I don't own a vehicle that isn't old enough to drink.
| | | | | Joined: Mar 2008 Posts: 1,775 'Bolter | | 'Bolter Joined: Mar 2008 Posts: 1,775 | | | |
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