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Click on image for the lowdown. 
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| | | Forums66 Topics128,043 Posts1,055,609 Members48,426 | | 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: Apr 2002 Posts: 2,168 A teacher, but always an apprentice. | | A teacher, but always an apprentice. Joined: Apr 2002 Posts: 2,168 | I've been trying to locate a T5 for my project around home and people want an extraordinary amount of money for one! Budget, budget, so I'm considering a 700r4 with an adaptor plate. This would be cheaper than the price of T5's in my area. Questions: 1. Will this require modifying the floor to fit when mated to a 261? 2. 261, 700r4, 3.90 gears, 28/29' tire. Too low an rpm? What's a 261 sweet spot for rpm? Thanks | | | | | Joined: May 2010 Posts: 42 'Bolter | | 'Bolter Joined: May 2010 Posts: 42 | I can't answer your 261/700R4 questions, but i would encourage you to keep looking for a T-5. There have been a few for sale here, as well as on the HAMB, Craigslist, Ebay etc... I don't know if US junkyards will ship to Canada, but I found mine on car-part.com for $300 + shipping.
I absolutely love my T5 behind a hopped up 235 in a '46 PU!
Last edited by X-Farmboy; 03/13/2015 11:57 PM.
Daryl
| | | | | Joined: Jan 2013 Posts: 1,384 Shop Shark | | Shop Shark Joined: Jan 2013 Posts: 1,384 | 700R4 questions Yes you will have to make a new floor pan to cover the trans. I used a Lokar floor shift and that required changes to the floor pan. Also you will have to cut the firewall opening a little higher. this is the other reason for a new floor pan.
Depending on your load and speed, you have the option of using "D" or "OD" to adjust your torque/RPM range. | | |
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