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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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#17731 08/10/2002 9:43 PM | Joined: Sep 2001 Posts: 78 Member | | Member Joined: Sep 2001 Posts: 78 | If I put a 3.40 rear end in my 66 would I have any problems going 70 on the interstate. I plan on having it on the road quite a bit. I have a 350 with a turbo 350 transmission in it. thanks | | |
#17732 08/11/2002 2:02 AM | Joined: Jul 2000 Posts: 23 Member | | Member Joined: Jul 2000 Posts: 23 | I run 3.07 with a 200R4, 1700 at 60, pulls real nice for me.
57 3/4 ton rat
66 C-10 panel 350 200R4 3.07 axle
68 C-20 dump runner, 250 4spd, 4.11
82 Camaro, 305, THM-200-R4
84 Monte Carlo, 350, TH350
EVERETT, WA
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#17733 08/11/2002 3:53 AM | Joined: Dec 2000 Posts: 54 Wrench Fetcher | | Wrench Fetcher Joined: Dec 2000 Posts: 54 | Your looking at about 2850 rpm's at 70 with 28" tires (common on 15" wheels) or 2660 with 30" (common on 16's). You'd probably be looking for OD about then..... | | |
#17734 08/11/2002 5:36 AM | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | You might want to consider going with a 3.08. Does pretty good in my 69 with 350/ th400.
Fred
52 3600
69 C-10
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