HOrnbrod Posted February 20, 2012 Share Posted February 20, 2012 I read somewhere that if you used an MJ/XJ AX15 tranny crossmember on an MJ/XJ w. the AW4 transmission, you will get about a 3/4" tranny drop w/o any loss of ground clearance. I know that the rubber tranny mounts are the same. Anyone have a couple of the x-members lying around to compare the differences? I'd like to try it as I have slight driveline vibration at about 35-45 MPH (had it for years) and would like to try this to see if it helps kill it. And no, I don't want to shim down the existing crossmember. :D Link to comment Share on other sites More sharing options...
JeepcoMJ Posted February 20, 2012 Share Posted February 20, 2012 I will get a pic tonight, but the difference is right about 3/4". The locations for the trans mount are identically centered as well Link to comment Share on other sites More sharing options...
HOrnbrod Posted February 20, 2012 Author Share Posted February 20, 2012 I will get a pic tonight, but the difference is right about 3/4". The locations for the trans mount are identically centered as well Thanks. Will swapping the x-member affect the exhaust hanger bracket? Link to comment Share on other sites More sharing options...
JeepcoMJ Posted February 20, 2012 Share Posted February 20, 2012 I will get a pic tonight, but the difference is right about 3/4". The locations for the trans mount are identically centered as well Thanks. Will swapping the x-member affect the exhaust hanger bracket? The exhaust divot on the crossmember is in the same location as well, to keep the exhaust from contacting it. IIRC it is also alot deeper to accomodate for the height of it. I will double and triple check that for you here and post back tonight about it...Out the door to run back to the shop and get some more work done. Link to comment Share on other sites More sharing options...
JeepcoMJ Posted February 21, 2012 Share Posted February 21, 2012 the exact difference. 5/8" the exhaust divot is in the same location, at the same depth as the automatic. after looking at an automatic comanche sitting here, and a manual one, the exhaust hangars are identical as well. I would imagine that you would simply have to loosen up the downpipe a little bit, lift the exhaust up, and re-tighten it in order to maintain the same clearance. there is enough free play alotted by the donut on the manifold to accomodate. likewise, a borla header and most other aftermarket headers will allow for that adjustement. Good luck. it will probably make an almost perfect difference in your driveshaft angles. -Pat Link to comment Share on other sites More sharing options...
HOrnbrod Posted February 21, 2012 Author Share Posted February 21, 2012 Thanks Pat for that. (Poetry 101 :D ) I have quite a bit of clearance now on the down pipe from the x-member I think. The below is a pic of the header I use; no means to easily adjust it. But I think it will clear okay. I think this is a worthwhile mod. :cheers: Link to comment Share on other sites More sharing options...
JeepcoMJ Posted February 21, 2012 Share Posted February 21, 2012 I think that header may be the exception lol. There may be a crossmember local to me. I will check. Another member here has just bought my last one along with an ax15. Ink double check the jy by me, though, if you'd like Link to comment Share on other sites More sharing options...
HOrnbrod Posted February 21, 2012 Author Share Posted February 21, 2012 I can get one locally here no problem now that I know it will do what I want. Appreciate the offer though. :cheers: Link to comment Share on other sites More sharing options...
JeepcoMJ Posted February 21, 2012 Share Posted February 21, 2012 Tenfour Link to comment Share on other sites More sharing options...
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