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Old 01-13-2010, 11:56 PM   #1
Mr.Chevy4x4
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73-80 vs 81-91 body mount differences

I did a search and didn't find what I was looking for.

I am just starting my 2wd blazer project. I found a '78 2wd with some rust issues and a 1988 4wd that has a great body. I am going to put the '88 body on the '78 frame.

Can someone tell me specifically what the differences are between the body mounts, and which ones I should use for my project.

Thanks in advance, and I will start a build thread soon.

Mike
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Old 01-14-2010, 01:18 AM   #2
thinair
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Re: 73-80 vs 81-91 body mount differences

use the body mounts for the year of the frame
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Old 01-14-2010, 12:35 PM   #3
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Re: 73-80 vs 81-91 body mount differences

In 1979 chevy changed the blazer frames to give more rear leg room. The back seat platform on 73-78 raises just behind the front seat. 79-91 rear platform raises a foot or so behind the front seat...


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Old 01-14-2010, 02:59 PM   #4
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Re: 73-80 vs 81-91 body mount differences

Actually the rear floor change happened with the 78 model. That's why I was sure the 88 body would fit the 78 chassis. The 78-91 bodies will not fit on the 77 and prior frame.

I just wasn't sure about the body mount differences. The rubber mount design changed with the '81 body.

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Old 01-14-2010, 06:37 PM   #5
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Re: 73-80 vs 81-91 body mount differences

I put a '87 4x4 body onto '73 2wd frame and besides the floor differences which you don't have to deal with I don't think I ran into any other problems swapping it over. I used body mounts made for the '87.
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Old 01-15-2010, 09:49 AM   #6
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Re: 73-80 vs 81-91 body mount differences

Good to know in case I need to swap the body of my 77' (with no title)
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Old 08-15-2010, 12:22 PM   #7
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Re: 73-80 vs 81-91 body mount differences

Bringing one back from the dead...
I'm with ECU pirate - if I decide to swap my straight '77 body onto a '79 frame, what problems will I run into? Looks like the other way around would give problems with frame being in the way of the footwell, but other than a lack of support under the seats, any other issues I might run into?
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Old 08-16-2010, 10:31 PM   #8
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Re: 73-80 vs 81-91 body mount differences

I'll fill you guys in on this in a couple of weeks. We bought a 78' k5 with a shot body, and found a newer 80's body in a yard. We are going to bolt up the 78 parts on the blazer before paint. Trevor
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