Skorpyo Posted May 29, 2017 Share Posted May 29, 2017 So I can't find an answer on this after searching so: I swapped in an AX15 from a 95. I bought a 4wd cable to match the speedo gauge, swapped in a mechanical drive housing from an older XJ (bought on eBay) that is from a 231 and clocked it according to the markings. I removed the electric unit of course. I've verified it's seated at the gauge and right at the tcase but the speedometer is only jumping. Leading me to think it's not engaging fully The speedo gear is a new 32 tooth and came with a new o-ring and another little rubber grommet. No idea where that grommet goes so I didn't install it. Any idea if that's the missing part to make this work? I'm running out of ideas. Thanks in advance! Link to comment Share on other sites More sharing options...
Eagle Posted May 29, 2017 Share Posted May 29, 2017 Did you use a long gear or a short gear? Link to comment Share on other sites More sharing options...
Skorpyo Posted May 29, 2017 Author Share Posted May 29, 2017 Disregard. Turns out when I first installed the gear it wasn't clocked correctly and it ate a few of the teeth on the gear. So now I need to buy another speedo gear... So be warned that Rugged Ridge speedo gears are very soft... Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Skorpyo Posted May 29, 2017 Author Share Posted May 29, 2017 It was a long gear. Link to comment Share on other sites More sharing options...
Eagle Posted May 30, 2017 Share Posted May 30, 2017 They're all soft. The gears are nylon -- it's important to set the clocking correctly when you install the gear. Link to comment Share on other sites More sharing options...
SBpunk Posted May 30, 2017 Share Posted May 30, 2017 Wish I would've seen this sooner. I have an extra yellow and green long gear I would've sent out for cost of shipping Link to comment Share on other sites More sharing options...
DigitalBman Posted May 30, 2017 Share Posted May 30, 2017 I am getting ready to install my gear in when it comes, any tricks or tips to make sure it's clocked right so I don't eat mine up? Link to comment Share on other sites More sharing options...
Crash Posted May 30, 2017 Share Posted May 30, 2017 I am getting ready to install my gear in when it comes, any tricks or tips to make sure it's clocked right so I don't eat mine up?I believe that the apparatus can be installed 4 ways. Try to place inside by hand, gear only and see which way the cover should be installed. Link to comment Share on other sites More sharing options...
Skorpyo Posted May 30, 2017 Author Share Posted May 30, 2017 I am getting ready to install my gear in when it comes, any tricks or tips to make sure it's clocked right so I don't eat mine up? There's markings on the housing that give a range. For example one says 32-38 and if you're installing a 34 tooth gear that marking round point towards a raised dot on the transfer case. Essentially it would be around the 6:00 mark if you were to think of the bolt location as 3:00. Here's a good photo of an electrical setup but it's the same for a mechanical: You'd think knowing all this I wouldn't have screwed mine up but I learned it too late. Oh well new ones in the mail. Tim Link to comment Share on other sites More sharing options...
HOrnbrod Posted May 31, 2017 Share Posted May 31, 2017 Good "how-to" HERE. Link to comment Share on other sites More sharing options...
DigitalBman Posted June 5, 2017 Share Posted June 5, 2017 Thanks for the information guys! Got the gear installed yesterday! It works perfectly! I really appreciate the info on here, prolly would have not clocked it right had I not seen this thread! Link to comment Share on other sites More sharing options...
Skorpyo Posted June 5, 2017 Author Share Posted June 5, 2017 So this past weekend I received a brand new 32 tooth gear, clocked it correctly and installed it ensuring it was properly seated and all cable connections were good. It still caused the speedometer to "jump" when engaged... I immediately shut off the drive so the gear didn't get any more damaged, but at this point I'm flummoxed. Why would a brand new gear, installed correctly, clocked correctly with all components meshing cause the speedo gear to jump? Would it be something with the cable I installed? I put in a new Crown cable that is fit for a 89 XJ/MJ with 4WD. I'm out of ideas and willing to take feedback from the forum at this point. After this failure I simply moved on to other projects so I haven't toyed with it since. Tim Link to comment Share on other sites More sharing options...
Eagle Posted June 5, 2017 Share Posted June 5, 2017 Be sure the cable doesn't have any sharp bends in it. Link to comment Share on other sites More sharing options...
Skorpyo Posted June 7, 2017 Author Share Posted June 7, 2017 So the saga continues. I verified the cable didn't have any sharp bends and hooked it up to a drill at a low speed and the needle still jumps. It's as if the cable is binding inside. So I took another cable I had that has an incorrect fitting and tested it and it too jumped. Lastly I hooked back up the original cable and when testing it it was as smooth as silk. It is certainly more stiff than the replacements and I'm out of ideas at this point. I tried to lubricate the new cable but that didn't help either. It seems like it's coiling up inside the sheathing when hooked up to the gauge. Off the gauge it turns smoothly but the least resistance causes it to bind. Tim Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
DirtyComanche Posted June 7, 2017 Share Posted June 7, 2017 Run it and see if it just needs some time to wear in. Mine jumped worse when I replaced the cable. It's quieted down a bunch now, but still does it around 60-70km/h. Link to comment Share on other sites More sharing options...
Skorpyo Posted June 7, 2017 Author Share Posted June 7, 2017 So I switched out the cable for an ATP unit that has an incorrect connector at the gauge since I could pull the drive out of the sheath. I gave it a bath in dry graphite and it's running smoother now. It's at an acceptable range and since I've got a ton of other stuff to work on that'll have to be good enough for now. Thanks everyone. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
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