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Re: Making 64 highway ready
dgrinnan #1341463 Fri Jan 10 2020 11:08 PM
Joined: Sep 2011
Posts: 2,031
Shop Shark
If you go with an overdrive transmission, make sure the OD gear is a good match for your rear axle gear. A good running inline six can handle the OD if the numbers are right but will bog the engine for lack of HP if you get it wrong.

Last edited by Lugnutz; Fri Jan 10 2020 11:09 PM.
Re: Making 64 highway ready
dgrinnan #1341491 Sat Jan 11 2020 01:19 AM
Joined: Feb 2019
Posts: 829
AD Addict
That is definitely a nice solid looking truck. Good luck this weekend and keep us posted if you strike a deal or not.

Last edited by Phak1; Sat Jan 11 2020 01:20 AM.


1952 Chevrolet 3100
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Re: Making 64 highway ready
dgrinnan #1341574 Sat Jan 11 2020 03:50 PM
Joined: Dec 2002
Posts: 3,773
Moderator - The Electrical Bay and Rocky Mountain Bolters
My 66 GMC was stock, 6 cyl, 4 speed manual trans, 3.73 rear end and was driven cross country more than a few times. I drove it on the freeway at 60-75 mph often.

Last edited by Rusty Rod; Sat Jan 11 2020 03:51 PM.

Another quality post.

Real Trucks Rattle

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Re: Making 64 highway ready
dgrinnan #1341597 Sat Jan 11 2020 08:35 PM
Joined: Nov 2004
Posts: 1,830
Workshop Owner
Sorry, cannot be done. I think you need to sell it to me. smile

No, seriously I have driven a '63 and a 68 before that one for many years on the interstate daily. They've both been long gone for more than a couple decades, but the speed limits haven't changed any since then. As long as it's in good mechanical condition, I wouldn't worry one bit. Upgrades can always be done later.

Nice find. thumbs_up


Last edited by J Lucas; Sat Jan 11 2020 08:35 PM.

J Lucas

1941 Chevy 1/2-Ton
1942 Chevy 1.5-Ton SWB
1959 Chevy Apache 31 Fleetside
1959 Chevy Apache 32 Fleetside
1959 Chevy Viking 40

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Re: Making 64 highway ready
dgrinnan #1351888 Fri Mar 27 2020 04:53 AM
Joined: Apr 2010
Posts: 448
Shop Shark
I had a '63 C10 for a long time. I drove it all over the Western United States. I had the 283 and started with the 2 speed Powerglide, but later upgraded to the TH-400. Final drive was still 1:1 on both. I had a 3.73:1 rear end. I got a lot of speeding tickets in that truck. It didn't mind the freeway one bit. I won't mention that time in 1981 on east bound I-70 headed out of Denver at well over 100mph. :-)

My current truck is a '62 C10. It started life with a 235, 3 speed, and a 3.90:1 rear end. I didn't know it then. When I got it, it had been converted to a later model 250, an SM420 4 speed (a factory option), and still had the 3.90:1 rear end. It would do 60mph comfortably, but any higher for anything other than short bursts just to pass was a struggle. After the 250 died, I dropped in a '63 327, but the rest was the same. No gear changes meant no change in speed, just more power to do it. Rebuilt the rear end and dropped in a set of 3.38:1 gears (a factory option) and it loves the freeway now. It doesn't have the same low end torque I had with the 3.90:1, but I have enough horsepower with the V8 to make up for that.

Bottom line is that these are old trucks. Expect that and you will love it. They can be set up to run the freeway, if you use the right parts. Even factory parts like mine. You don't have to get too crazy trying to make it into a Modern Freeway Cruiser. If that's what you want, go get one. These are old Farm Trucks, but can handle the freeway if needed.

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