TD New Guy
Join Date: Dec 2005
Location: Tooele, UT
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Rob Carter and I discussed this a couple years back, and the extension housing that bolts to the PTU and then to the A604, SHOULD also fit the A670 (and by association the A413). You are in effect driving the drivers front tire off the left side of the diff, and the rest of the tires off the right side of the diff. But I wouldn't want to spool the diff as that will cuase binding front to rear. Not good. ALso, the AWD setup is very picky about tires. They HAVE to be a matched set, size and air pressure. And my understanding of the setup is that the 3.8 power and torque are about the absolute limits of the PTU and rear diff.
Shelby had a couple of AWD Daytona mules running before 88, the "transfer case" was a one off unit, and the rear axle appeared to be a Dana 30 diff attached to a beam axle (likely a stock G body axle) and drove custome made hubs. I had the article somewhere on an older computer and archived it to CD years ago. I also sent it to someone years ago. Maybe Gary Donovan has it? I don't know, haven't seen it for some time.
More in keeping with the original theme of this discussion, Chrysler (Jeep) did consider a K based drivetrain for a still born concept Jeep (JJ) whcich would have used a 2.2 mounted front to rear, and the axle shaft/driveshafts would have driven aluminum Dana 25 axles. I'm going to guess the JJ would have been IFS/IRS and I have never found out what gear ratios would have been used.
When I first heard of the JJ a couple years ago, I started gathering parts for a rock crawler. I still had the 2.2 T2 and A555 from the 88 Shelby Z I stripped. I had gathered 2 Toyota IFS units complete with suspension parts and some other stuff. I was about to purchase a sandrail chassis to significantly modify, when I got laid off. I spent the next 60 days unemployed and sold off all but the motor and trans.
I am trying to figure a way to run yokes off either side of a FWD diff, so you would lose trans fluid or risk pulling an axleshaft out of the diff. I'm thinking an approriately splined shaft shoved through both spider gears would be fine, and then tap the ends of the shaft so a yoke could be fit on the ends and bolted down tight.
Funny things seem to happen as I gather parts, I change jobs. A year ago March, I had started gathering parts for a RWD 2.2 powered minivan. I didn't have too many parts gathered save for the front axle out of a 2wd Cherokee and assorted other little things. But was offered a job elsewhere and we moved from Cali to Utah. Don't worry, the 2.2 and A555 went to TD fanatic who now has THREE 88 Shelby Zs...
While I no longer am in a minivan, I have switched to Jeeps and drive a 95 Grand Cherokee. I'm looking to take a 86 Comanche pickup off a neighbor before the end of summer. It has a 2.5 (AMC, not GM Iron Duke) and a 5 speed and is 4x4. Rusty and needs some work. But, I'm seriously contemplating converting the AMC 2.5 (EFI TBI) to run on say a 2.5 T1 minivan ECM and add a turbo... I still have the intercooler from the 88Z...