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Apr 12, 2007 | 08:25 PM

1970Custom

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From: Middleton, ID

I-Beams

How much did the I-beams change from 67-72 to the 80-96?

Apr 12, 2007 | 08:29 PM

Redcat Diesel

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From: Pittsburgh,Pa.

Major differences, they do not interchange.

Apr 13, 2007 | 12:33 AM

1970Custom

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From: Middleton, ID

Is it in the mounting points, or another point.

Apr 13, 2007 | 04:41 AM

Redcat Diesel

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From: Pittsburgh,Pa.

General shape and size.At some point they changed from king pins to ball joints. I'm not sure when.I'm guessing you are wanting disc brakes?If so the 73-79 stuff is a bolt in.There is some excellent info on a disc swap in the facts thread at the start of this forum.Hope this helps.

Apr 13, 2007 | 11:01 AM

1970Custom

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From: Middleton, ID

Disks yes, BUT I'm looking more in the direction of a Pre Runner. There's a couple companies that offer suspension kits for the 65-79s however the kits for the newer I-Beam trucks is a better suspension.

Apr 16, 2007 | 11:10 PM

scottfreeman

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From: Cascade, ID

Nothing a little custom fab would remedy.

Apr 18, 2007 | 06:51 PM

boo-yaa138

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From: orange county ca.

you want to stay with the older i-beams cause they are equal length beams. the newer beam have one short beam and one long beam. you will get alot more travel out of the older equal length beam the the newer ones. there is a company in california called auto fab that make a really good set up for the older ford trucks. you will have a pretty crazy prerunner if you stick to the front end you have.