Geonovast Posted October 23, 2007 Share Posted October 23, 2007 I need a rear driveshaft length for a.. 4wd 2.5 Ax-5/NP207/D35 Shortbed I don't know what "official" lengths are, but if you can get center of the u-joint eyelet to center of u-joint eyelet that should work. Also, would it be better to have a 2wd MJ shaft shortened, or an XJ shaft lengthened? Link to comment Share on other sites More sharing options...
mjeff87 Posted October 23, 2007 Share Posted October 23, 2007 47", but that's with a 231 not a 207....not sure if there's a difference (most likely not). It would probably be cheaper and better to shorten an MJ shaft vs. lengthening an XJ one.....to shorten, shops grind off the weld of the rear yoke and pull it out (it slips/presses into the shaft a couple inches), cut the shaft and then reinsert/reweld the yoke back on. Not sure you could extend the XJ shaft to the length required cheaply or as easily. HTH, Jeff Link to comment Share on other sites More sharing options...
pingpong Posted October 23, 2007 Share Posted October 23, 2007 They don't really extend it... most of the time they just retube it. I would be skeptical of any driveshaft shop that welded tube to tube using a butt weld. That gives you 3 places for it to fail :eek: Link to comment Share on other sites More sharing options...
feerocknok Posted October 23, 2007 Share Posted October 23, 2007 Getting a shaft lengthened is $$$. $300ish is about the norm around here. Shortened should not be more than $100. Link to comment Share on other sites More sharing options...
bentnotbusted Posted October 24, 2007 Share Posted October 24, 2007 Might be helpful for you to know that a lot of 2wd MJ shafts are a double tube design with a rubber layer between the tubes and therefore aren't good candidates for being shortened. 2 out of my 3 2wd's had this type shaft. Link to comment Share on other sites More sharing options...
mfpdm Posted October 24, 2007 Share Posted October 24, 2007 Might be helpful for you to know that a lot of 2wd MJ shafts are a double tube design with a rubber layer between the tubes and therefore aren't good candidates for being shortened. 2 out of my 3 2wd's had this type shaft. Interesting. I had planned on having my 2wd double tubed shaft shorten. I'm guessing that the rubber melts when you try to weld the end back on which makes them a poor candidate. I could see how that would make it hard to balance the shaft. I had been researching on other forums the possibility of using an XJ front shaft with an SYE. I've seen a few xj'ers have done it but they didn't have to add to the overall lenght of the shaft, just the yoke coming out of the t-case. I figured for the mj, use a SYE and the front portion of the xj shaft. Then all that would need to be fab'd would be the back part to connect to the axle yoke. Problem is, it's probably just as costly as having one made. :dunno: Link to comment Share on other sites More sharing options...
Twisty Posted October 24, 2007 Share Posted October 24, 2007 Getting a shaft lengthened is $$$. $300ish is about the norm around here. Shortened should not be more than $100. WTF?? I brought this into a driveline shop, with an estimate of $120 to re-tube the shaft. Turned out it was $119.50 for re-tubing it to 48.75" (u-joint to u-joint) and for 2 NEW 1310 u-joints. If you are paying $300 for THAT, then I'd look just a little harder for another shop. Link to comment Share on other sites More sharing options...
mfpdm Posted October 24, 2007 Share Posted October 24, 2007 That pic is so cool. I know it probably sucked when it happened, but what a work of art. :thumbsup: I hope you kept that for the garage wall. :D Link to comment Share on other sites More sharing options...
feerocknok Posted October 24, 2007 Share Posted October 24, 2007 I've gotten that from 3 different shops when looking for one for an '83 Blazer. The shop I went with was $105 to get a Suburban shaft shortened with new joints, or $295 to get the Blazer shaft lengthened with new joints. Link to comment Share on other sites More sharing options...
Geonovast Posted October 24, 2007 Author Share Posted October 24, 2007 47"..kay. I guess I'll go with the 2wd shortening then.lol Link to comment Share on other sites More sharing options...
mjeff87 Posted October 24, 2007 Share Posted October 24, 2007 Here's the one I had cut down 1-1/4" a couple weeks ago by a shop up here in Richmond that does heavy truck work.....$65 to shorten, plus $25 for new UJ's pressed in Image Not Found Link to comment Share on other sites More sharing options...
Pete M Posted October 24, 2007 Share Posted October 24, 2007 Might be helpful for you to know that a lot of 2wd MJ shafts are a double tube design with a rubber layer between the tubes and therefore aren't good candidates for being shortened. 2 out of my 3 2wd's had this type shaft. The double-tube shaft in my 88 shortened just fine. You can't shorten the rubber isolator end, but you can shorten the other end (t-case end). Link to comment Share on other sites More sharing options...
JGR Posted February 1, 2022 Share Posted February 1, 2022 Just finishing Dana 35 swap to Dana 44 with disk Brake Conversion and 3:73 trutrac and a 3 inch lift and new tubular/adjustable trailing arms. What are my options to replace or modify existng rear driveshaft. What would the length of a rear driveshaft have to be on a 1988 Jeep comanche Long Bed,4.0 6 cylinder, 2WD,automatic, with a factory Comanche Dana 44. Thanks for any help Link to comment Share on other sites More sharing options...
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