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07-05-2022, 01:56 PM | #1 |
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Join Date: May 2014
Location: Mission BC
Posts: 452
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S10 frame swap 1950 GMC lowering block size?
Just about done my swap 1950 GMC LS/4l60E and now my rear looks too low to me. I used the frame mounts from skymangs post, and have drop spindles in the front. My current rear lowering block is 3" thanks
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1962 C10 Longbox LS 5.3 4L60E----Sold$$ 2014 Ram 4x4 3500 Laramie Diesel..Momma's truck 2015 Ram 4x4 1500 1997 Boxster. 1972 K10 Custom Deluxe LS 6.0 1950 GMC 3100 S10 & LS swapped |
07-05-2022, 06:02 PM | #2 |
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Join Date: Jul 2007
Location: Toppenish, WA
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Re: S10 frame swap 1950 GMC lowering block size?
I'd stick a jack under the back bumper or frame and raise the back up to where I thought it looked right and measure the difference at the center of the wheel well and go from there. That probably isn't more than one/two inches.
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Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around. |
07-06-2022, 10:38 AM | #3 |
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Join Date: Sep 2018
Location: Ontario
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Re: S10 frame swap 1950 GMC lowering block size?
I used 2 inch drop spindles and 2 inch lowering blocks, with 15 inch wheels, if that helps?
it's kind of trial and error as it depends on your cab mounts
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https://67-72chevytrucks.com/vboard/...=797726&page=3http://https://67-72chevytrucks.com/...=797726&page=3 51 Chev 5 window on S10 with SBC 1958 Pontiac Wagon build https://67-72chevytrucks.com/vboard/...d.php?t=849781 |
07-06-2022, 06:42 PM | #4 |
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Join Date: May 2007
Location: Doodah Kansas
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Re: S10 frame swap 1950 GMC lowering block size?
do you have the wheels you plan to run mounted yet? I always set up a staggered set with different offsets and heights front to back, so a 3/3 drop always works out to a 3/2 or 3/2.5 and a roughly level ride height. that said, if you feel the rear is too low, and you have been driving a little and the front springs have fully settled, just go to a smaller block. (while I am thinking of it, make sure your front springs are seated! holds more guys up, literally, than they like to admit)
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the mass of men live lives of quiet desperation if there is a problem, I can have it. new project WAYNE http://67-72chevytrucks.com/vboard/s...d.php?t=844393 |
07-07-2022, 12:14 AM | #5 |
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Join Date: May 2014
Location: Mission BC
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Re: S10 frame swap 1950 GMC lowering block size?
Thanks Gents..
I think the rear springs of the S10 frame have sagged..The previous owner used it as a scrap hauler and always had a load on it. I am going to cut my 3" rear block in half and see how it looks.
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1962 C10 Longbox LS 5.3 4L60E----Sold$$ 2014 Ram 4x4 3500 Laramie Diesel..Momma's truck 2015 Ram 4x4 1500 1997 Boxster. 1972 K10 Custom Deluxe LS 6.0 1950 GMC 3100 S10 & LS swapped |
07-07-2022, 11:24 AM | #6 |
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Join Date: Sep 2018
Location: Ontario
Posts: 852
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Re: S10 frame swap 1950 GMC lowering block size?
I wish I removed and replaced my rear leafs when I had the truck apart. The ride is a little stiff and I think that would help smooth it out. (they are probably seized)
Now that the truck is all together, I really don't feel like doing it. Looks great, keep at it
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https://67-72chevytrucks.com/vboard/...=797726&page=3http://https://67-72chevytrucks.com/...=797726&page=3 51 Chev 5 window on S10 with SBC 1958 Pontiac Wagon build https://67-72chevytrucks.com/vboard/...d.php?t=849781 |
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