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Old 11-30-2004, 08:25 PM
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4wd to a 2wd.. frame info

What is the weigth difference between a half ton and 3/4 ton frame?..

and can i use the twin i beams and rear end (2wd)from a half ton, and bolt them in place of a 3/4 tons(4wd)? 78' half ton and 80-86 3/4 ton. both had 351m's and 4 speeds.. i belive

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Old 11-30-2004, 09:07 PM
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I dunno what your trying to use them for but I belive the only Twin I beams interchangable are from 65-66?-79 Atleast thats how it pertains to pickups like mine. Would help to have more info.
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Old 11-30-2004, 11:10 PM
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ok

Im restoring a truck(53 merc) and id like to put it on a different frame( a 80-86) ford truck 351m 2v reg cab lb and i had a 78 ford pick up lb ext cab 351m 2v and id like to know if i could use the i beams from the 78 on the 80-86 since both trucks have i beams on them... one just happens to be a 4x4 and a 3/4 ton and id like it to be 2wd and have the 5 bolt axles under it a ford 9" rear end and the i beams spindles etc off the 78....
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Old 12-01-2004, 09:39 AM
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You may need to go the the junkyard and do some investigating. On all the 4wd vehicles I've seen there is a huge difference in the mounting of the suspension components in the front. Most of the components are mounted on the frame with heavy rivets (3/8 to 1/2"). The basic frame appears to be the same.
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Old 12-01-2004, 10:07 AM
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Make it a 4x4..........................suits it better in my opinion.
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Old 12-02-2004, 03:46 AM
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None of that stuff will interchange. The 65-79 I-beams are totally different than the 80s and the 4x4 stuff is different from the 2wd. However the 1/2 ton and 3/4 ton I-beams from 65-79 can be interchanged. Use the earlier frame if you must but keep in mind it is expensive to lower them and even then the kits that are available required some hokey steering arm extensions that cause you to loose a bunch of your turning radius.
And this is just my opinion, I am a Ford man but have almost no use for the M engines. Putting one of those in is a sure fire recipe for a truck that will be unsellable.
IMHO you are going to end up with a truck that sets all wrong with a heavy wheezer of an engine. I would almost agree to use the 4x4 chassis and make it a 4x.
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Old 12-09-2004, 03:56 PM
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you say that like it's a BAD THING!
http://hotrodders.com/gallery/showga...&si=bullheimer
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Old 12-09-2004, 08:47 PM
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Quote:
Originally posted by bullheimer
you say that like it's a BAD THING!
http://hotrodders.com/gallery/showga...&si=bullheimer
Maybe I am getting a little thick in my old age but I don't have a clue what you are refering t or what picture(s) were supposed to be about????
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Old 12-10-2004, 04:59 PM
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ok heres a big one?

67' merc half ton.. had a 390

79 ford ranger 150...351m

witch i beams will ride lower?
" " Has the better ps unit?
" " will have the better brakes?
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Old 12-14-2004, 05:03 AM
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I-beams on both are almost the same except for the steering stops. Of course the 79 has disc brakes. If the 67 has the original power steering it is a bendix and isn't as tough as the 69 and later Saginaw boxes used through the 79 model. One nice thing about the Bendix is you don't have to change the column and firewall bracket to install it. But also the odd shape of the Bendix will interfere with some headers and I don't think anyone sells them for power steering applications prior to 68-69.
Ride height will be the same on both.
You might want to go check out FORDifications. It is a 67-72 specific board and the administrator has compiled tech articles on just about anything you can imagine swapping on these trucks. Very good info on what fits what and very helpful guys with tons of experience.
http://www.fordification.com/forum/
P.S. Got any other Mercs around there? I want one.
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