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View Full Version : Yet another drivetrain swap thread


xanadu
06-12-2003, 05:32 AM
I currently have two FSJ's, a 1972 J-4000 and a recently acquired 1975 J-10. Would love to get a nice condition FSJ Cherokee or Wagoneer, but I'm wondering what it would take to fix some of their shortcomings. It's probably a pie-in-the-sky idea, but hopefully it'll make for good conversation. The end result (in my mind) would be a modern drivetrain with the classic Jeep look. Almost like if FSJ's had continued to be built.

Here's what I want:
1. Fuel-injected V8 power. For the swap, I wouldn't care if it was AMC, Dodge, Ford, or Chevy. I'd go for whatever would work with the other components the best. More power, better fuel economy.

2. Overdrive transmission (for better fuel efficiency, of course). Ford AOD, Chevy 700-R4, Dodge 47RE, whatever.

3. Full-time 4wd. This is the kicker. Is it easier to adapt an original Quadra-Trac to run with the modern stuff? Seems hard since it only came with the TH400. What full-time case could fit the EFI V8 and OD tranny combo without requiring special axles? Best transfer case would be something like the Grand Cherokee's Selec-Trac, which has selectable 2wd, 4wd full-time, 4wd part-time, and 4low. But of course you'd need a vacuum disconnect front axle and (probably) computer controls. If you went that route, is there an axle that could be used?

So...can it be done?

And for the record, I know it would be easier to buy a Tahoe or Durango or something, but they don't look like FSJ's, now do they? smile.gif

Smooshy
06-12-2003, 08:42 AM
Now what fun would that be :D

gsmikie
06-12-2003, 03:46 PM
find a late model roll over truck and put your body on its frame much easier

River Beast
06-13-2003, 12:00 AM
what Mike said.....

Panther
06-14-2003, 11:42 AM
That sounds like RamJets wagoneer http://www.promogiant.com/wag/

Only difference is the full time which I think would be easily obtained with the GW Selec Trac

Lindel
06-14-2003, 01:03 PM
You can get either the Durango or the GMC Denali (Sierra or Yukon) in full-time 4wd.

You're only option for keeping the QT is to use a TH400, it can be just about any style TH400, just so long as you change the output shaft and adapter from the AMC version. That being said, the Grand Cherokee Limited are full time set ups, but you'll need a driver's drop front axle for that, and a 727 tranny.