I would like to get rid of my full-time unit and go part-time. Would it better to use the Mile Marker kit or should I change the transfer case,rear end ,and the drive shafts. As you can see I'm not that smart when it comes to the drive line components. If it is best to change everything does anybody know what parts I should use. I have an AMC 360 Turbo 400 in a CJ 7 .I am trying to free up some HP and save my front end .I want to keep the 400 trannie.:cool:

goto off-road.com check into short jeep and find Cjdave. he an expert on quadra trac.

it depends on how you wheel /abuse it, it's ok for light/medium duty trail rides with the MM kit. if you plan on upgrading the axles, do the t-case too:flipoff2:

Personally, I like the QT...it's really a pretty good case, it just has a bad reputation. The big problem right now is replacement parts. IIRC, you can't even get the cones for them anymore, so rebuilding the thing could become a PITA. I'd get a different case; I went with the D20, FYI. ;)

i am building a 77 cherokee and its going from bw1339 to dana 20 cause i have several 20's for spairs.

Thanks for the info but those who use the D20 did you have to change the rear end and drive shaft? Does the front drive shaft have to be changed as well?:confused: :jeep:

You just go get your shafts retubed for the right length, not that big of a deal..... if you even have to do that at all.

other than your shaft bein on a side angle, i dont see a problem with it. looks funny, might vibe a little, but it should work

Originally posted by chris_jeep
Thanks for the info but those who use the D20 did you have to change the rear end and drive shaft? Does the front drive shaft have to be changed as well?:confused: :jeep:
i changed the axles because i wanted to change the nt over to wt. i have not got far enough to worry about drive shafts yet.

You have to disassemble the transmission and replace the output shaft.
Your driveshafts will work, but the rear will be at a lateral angle

:usa: Thanks for the info my uncle says he might have a set of axles with lockers 373 gears and lockable hubs front and rear they are D44's. He said they should work and give me center pumkin on the rear.:cool:

my opion is get rid of the qt t-case. i broke three chains in them with a 304 and 33" tires with open diffs. any wheeling with bigger tires or h.p. you're going to have problems. i'm not sure i would run the driveshaft on that angle, it may work if it was longer but i think its to short to work with out major vibes. i know you said you want to keep the th400 but a tf727 bolts to the amc engines and to the dana 300 t-case with no special adaptors.