1978 chinook 2X into 4X? ? ? ? ? ? - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 02-18-2004, 08:48 AM   #1 (permalink)
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1978 chinook 2X into 4X? ? ? ? ? ?

HEY guys ____ Any ideas(simplest and easiest to accomplish) out there on how to turn a 1978 Chinook Toyota 2W Drive, 4 speed 20R engine (mini motor home),not sure what rear axel it has ,but it only has a single wheel on each side, into 4 Wheel Drive. I love this thing; itís like a backpack on wheels. The wheelbase is NOT quit the same lengh as a Toyota long wheelbase rig. The wheelbase is either slightly shorter or longer, I forgot which. I think at the time I was considering making the mods. My friend and I ruled out just taking body off, and putting it over a long wheelbase 4X toy for some reason, things didnít quite match up. Anyway all feedback welcomed.____ THANKS BAYRUNNER
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Old 02-18-2004, 09:22 AM   #2 (permalink)
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Basically you will need a complete drivetrain swap including a SAS.

At the very minimum you wil need:
New tranny
Transfer case
front axle
cut off front suspension
install hanger
install high steer
make new drivelines
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Old 02-18-2004, 11:34 AM   #3 (permalink)
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I actually wanted to see if someone could do that... It would be kinda cool to see.
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Old 02-18-2004, 11:57 AM   #4 (permalink)
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I have thought of that too. . Everytime I see one, I think that would be cool as a 4wd.
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Old 02-18-2004, 06:48 PM   #5 (permalink)
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Hey, I have seen something like that. This one is a dually in the back and is 4 wheel drive. I have been keeping an eye on it this past year. I see it everyday on my way to work in a driveway. I keep meaning to go knock on the door. Should I sneek up and take pictures?
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Old 02-18-2004, 08:01 PM   #6 (permalink)
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Hey Keeprunning ___ Leave the guy my E-Mail Add. ____ BAYRUNNER
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Old 02-18-2004, 09:18 PM   #7 (permalink)
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A few years back toyota motor company was putting the factory dually axle in those for free because they were breaking the shafts. I wonder if that policy is still in effect?
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Old 02-19-2004, 06:35 PM   #8 (permalink)
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I have a friend with an '81 chinook, last time I saw him somewhere along the course of a conversation on the thing he mentioned that the L52 tranny in it had a decent low range and got along ok, and I called him on it because the L52 is a 4x4 tranny. He swore up and down that thats what it had, and discribed it somewhat correctly to me, but it was late and dark so I didn't actually want to crawl under the thing to see for myself.

Suppose the chinook has an L52 tranny with a different tail housing on it? ...if so you could possibly swap the tailhousing that accepts a Tcase, can anyone confirm or disprove this info?
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Old 02-20-2004, 05:34 PM   #9 (permalink)
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From what I have seen under those at work, the retrofit was a G.M. Corp 12 bolt axle(6 Lug).
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Old 02-20-2004, 06:55 PM   #10 (permalink)
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[QUOTE]Originally posted by spasch
From what I have seen under those at work, the retrofit was a G.M. Corp 12 bolt axle(6 Lug). [/QUOTE

The toyota shafts are beefier than the 12 bolt shafts, have a larger bearing and better bearing/shaft retention. The retrofit of a 12 bolt was probably someone elses idea of a fix
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