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Old 04-15-2022, 05:34 PM   #76
dsraven
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Re: subframe question

Sorry, thought you said 81 up.
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Old 04-15-2022, 06:03 PM   #77
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Re: subframe question

Quote:
Originally Posted by dsraven View Post
Sorry, thought you said 81 up.
I did. 73 to 80 and or 81 to 91. basically the same.
square body.
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Old 04-15-2022, 11:03 PM   #78
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Re: subframe question

I have a 57 one ton and I installed 73 3/4 ton frame on my truck and it could'nt have worked out better, I cut a c shape right behind where shocks were mounted. I then removed the rotors and calipers, installed 1988 one ton rotors, put the calipers back on and a proportioning valve and a dual chamber m cylinder in the stock location with a booster and it rides, handles, steers, and stops like a 73 to 85 square body. make sure to right down any V I N or serial number you come across, most frames are numbered on the front. and make sure (most important) that you keep the wheel base the same.
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Old 04-15-2022, 11:06 PM   #79
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Re: subframe question

Included some pics if it helps. TonyMann.
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Old 04-21-2022, 11:10 PM   #80
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Re: subframe question

can get a 91 1 ton dually frame but not sure on making it work.

also can get a mid 90's 3500 hd.
it has 19.5 wheels and 454ci with 4l80e

Those years have a lot more curves in the frame.
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Old 05-12-2022, 12:15 AM   #81
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Re: subframe question

Got my hands on a perfect 1980 long bed 3/4 ton frame. Looks like I will do the complete swap instead of the graft after all.
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Old 05-12-2022, 08:23 AM   #82
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Re: subframe question

Nice. Post up so.e pics when you get rolling in it.
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Old 06-14-2022, 06:51 PM   #83
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Re: subframe question

8 inches removed from wheelbase
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Old 06-14-2022, 07:06 PM   #84
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Re: subframe question

Nice fitment. Should weld up nice.
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Old 06-19-2022, 04:12 PM   #85
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Re: subframe question

plates bolted into place and ready to weld.
I know the plates are overkill but I like to over engineer everything.
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Old 06-19-2022, 04:19 PM   #86
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Re: subframe question

frame is nice and straight
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Old 06-24-2022, 02:47 PM   #87
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Re: subframe question

cab mounts installed
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Old 04-07-2023, 07:58 PM   #88
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Re: subframe question

engine and tranny is in
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Old 04-07-2023, 08:00 PM   #89
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Re: subframe question

1st suburban tank bracket installed
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Old 04-07-2023, 08:05 PM   #90
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Re: subframe question

good forward progress. keep plugging away and soon it will be together.
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