ftpiercecracker1 Posted February 23, 2016 Share Posted February 23, 2016 Tried using search, but it is not working right on my phone for some reason. Just bought a 99 XJ Dana 30 from a friend. What all can be swapped over onto the newer axle from my old one? The balljoints (XRF) and wheel bearings (TIMKEN) on my current axle are newer and in great shape. Is it advisable to remove and reuse balljoints in such a way? What about brakes? Is it straight bolt on? Thanks, FPC Link to comment Share on other sites More sharing options...
Wiggilez Posted February 23, 2016 Share Posted February 23, 2016 the u-joints and the one piece shaft on the pass-side are two of the things I can think of. Link to comment Share on other sites More sharing options...
ftpiercecracker1 Posted February 23, 2016 Author Share Posted February 23, 2016 Yes, that is correct, but I am going to be swapping the entire axle. I need to know what I can take off of my old axle and put on the new one. Ex: can I put the old wheel bearings on the new axle Link to comment Share on other sites More sharing options...
Wiggilez Posted February 23, 2016 Share Posted February 23, 2016 ah, sorry, I didn't read that fully, my bad. unfortunately I don't know if those types of things are transferable. Link to comment Share on other sites More sharing options...
Dom U Posted February 23, 2016 Share Posted February 23, 2016 What year is your old one? I don't see why your wheel bearing wouldn't be transferable as far as I'm aware all Dana 30s use the same wheel bearings. The differences that I'm aware of is pre 95 had weaker u-joints. And most pre 93 I believe had a CAD and 2 piece passenger side axle shaft, which even there you can and IMO should switch to the 1 piece axle shaft with larger u-joints. As for ball joints iv never heard of anyone reuseing them. Is there a reason you need a new axle since you've already invested this money in you old one? Link to comment Share on other sites More sharing options...
Jackrabbit41 Posted February 23, 2016 Share Posted February 23, 2016 You can't put the wheel bearings on. I learned this the hard way. Link to comment Share on other sites More sharing options...
Jackrabbit41 Posted February 23, 2016 Share Posted February 23, 2016 Ended up grooving my rotors and doing a burnout in my garage lol Link to comment Share on other sites More sharing options...
Dom U Posted February 23, 2016 Share Posted February 23, 2016 The hub assembly/wheel bearing is one unit should easily swap over. Link to comment Share on other sites More sharing options...
Dillithium Posted February 23, 2016 Share Posted February 23, 2016 No, the hub bearing will not swap over. There is a difference in "height" with hub bearings throughout the years. Brakes I'm not sure about, they changed the caliper design at one point. You'd have to visually inspect it. Ball joints should be the same. Link to comment Share on other sites More sharing options...
Eagle Posted February 23, 2016 Share Posted February 23, 2016 Yes, that is correct, but I am going to be swapping the entire axle. I need to know what I can take off of my old axle and put on the new one. Ex: can I put the old wheel bearings on the new axle Either swap everything, or nothing. From my unpublished manuscript: Steering knuckles: There are two designs of steering knuckle, and within each design the left and right sides are mirror image and carry different part numbers. The early knuckles were used from 1984 through 1989. The late knuckles were used from 1990 through 2001. Hub/Bearing: Three different hub/bearing assemblies were used. The hub/bearing assembly is the same for both sides of the vehicle. The first type was used from 1984 through 1989, and must be mated to the early steering knuckle from the same range of years. The early hub/rotors used tapered roller bearings, which are available as individual replacement parts, and in theory can be rebuilt. In practice, removing the old bearings and installing new ones requires a large arbor press and bearing splitter, equipment not available to the average owner. In practice, even dealerships simply replace the entire assembly, because the labor cost to rebuild would exceed the cost of a replacement assembly. The second type of hub/bearing assembly was used from 1990 through mid-1999. This hub/bearing assembly mates up with the newer style steering knuckle and is used with composite rotors. Certain years of XJ with composite rotors were subject to a safety recall if they were located in northern “rust belt” states, because of problems with the rotors (see below). When replacing hub/bearings in vehicles within this range of years, unless the vehicle recall history is known it is wise to call a dealer or DaimlerChrysler customer service to determine whether or not the vehicle has undergone the brake rotor recall. If so, confirm which hub/bearing assemblies should be used as service replacements.. The third type of hub/bearing assembly was used from mid-1999 through 2001. This hub/bearing is also used with the new style steering knuckles, and is mated with the newer style cast rotors. Rotors: Three types of rotors were used. Rotors are the same for left and right sides. The first style of rotor was used from 1984 through 1989. The second style of rotor was used from 1990 through mid-1999. This second style rotor was a “composite” design—the braking surface disc was separate from the center “hat” section, which was stamped from comparatively thin sheet steel. After several years of service, it was found that in states and localities where salt is used on the roads in winter, corrosion of the “hat” section could result in the disc portion separating from the assembly, causing a loss of brakes. A factory recall was issued to correct this problem. The recall affects only vehicles within a range of years, and only in certain states. Anyone owning a Cherokee or Comanche in the range from 1990 through 1999 is advised to call a dealer or DaimlerChrysler customer service with the VIN number to determine if the vehicle is subject to this recall. Mid-year in the 1999 model year the front brakes were changed to an all cast rotor design. Although the original, early style rotors were also all cast, the new rotors are different from the early ones and carry a different part number. The new cast rotors were used from mid-1999 through 2001. Because 1999 was a transition year, owners of 1999 Cherokees will need the VIN number to determine the correct parts to order when servicing the front brakes or hub/bearing assemblies. Calipers: Two styles of caliper were used. The calipers are mirror image for the left and right sides and carry different part numbers within each group of years. The early style caliper was used from 1984 through 1989. The later style caliper was used from 1990 through 2001 and is used with both the composite rotors and the newer cast rotors. As previously noted, a complete front axle assembly from any year Cherokee or Comanche can be installed in a Cherokee or Comanche of any other year. It is only when attempting to swap components among different years that the above parts differences become critical. Please note that the above is copyrighted and I am not granting permission to reproduce it. Link to comment Share on other sites More sharing options...
cruiser54 Posted February 23, 2016 Share Posted February 23, 2016 My understanding is that if you strip it down to the inner "Cs", you can swap everything over from yours. Link to comment Share on other sites More sharing options...
75sv1 Posted February 23, 2016 Share Posted February 23, 2016 Basically, what Eagle wrote. Says '90 for your Eliminator, HP. The latter axles were LP, that the hub bearings and rotor were changed. If you swap them as a set, it would match up and work. The calipers are the same. I did swap on '98 rotors and hub bearing assemblies from a '98 HP to a '00 LP. I am presently gathering parts for the WJ big brake swap. So, I bought a set of '00 hub assemblies. Way things go. Link to comment Share on other sites More sharing options...
ftpiercecracker1 Posted February 23, 2016 Author Share Posted February 23, 2016 Sorry for the delay. Had to wait until i could get to a computer to responded. What year is your old one? I don't see why your wheel bearing wouldn't be transferable as far as I'm aware all Dana 30s use the same wheel bearings. The differences that I'm aware of is pre 95 had weaker u-joints. And most pre 93 I believe had a CAD and 2 piece passenger side axle shaft, which even there you can and IMO should switch to the 1 piece axle shaft with larger u-joints. As for ball joints iv never heard of anyone reuseing them. Is there a reason you need a new axle since you've already invested this money in you old one? Last month in 89. Rear axle is an 8.25 w/ 3.55, front is 3.07. I put the ball joints and wheel bearings in because it needed to be done if i wanted to continue driving it safely. I was moving to FL as well and would be hauling a ton of crap which made it all the more imperative. At that time i didnt have the money to buy a front axle to match the rear. Yes, that is correct, but I am going to be swapping the entire axle. I need to know what I can take off of my old axle and put on the new one.Ex: can I put the old wheel bearings on the new axle Either swap everything, or nothing. So if someone wants to use a newer axle it has to be complete calipers, rotors, and wheel bearings. Basically, what Eagle wrote. Says '90 for your Eliminator, HP. The latter axles were LP, that the hub bearings and rotor were changed. If you swap them as a set, it would match up and work. The calipers are the same. I did swap on '98 rotors and hub bearing assemblies from a '98 HP to a '00 LP. I am presently gathering parts for the WJ big brake swap. So, I bought a set of '00 hub assemblies. Way things go. yes, 00 and 01 were LP Thanks for the input guys, FPC Link to comment Share on other sites More sharing options...
ftpiercecracker1 Posted February 23, 2016 Author Share Posted February 23, 2016 So after rereading eagles manuscript it seems there might be a chance that everything will be a direct swap, but a slim one. I will report back with my findings. FPC Link to comment Share on other sites More sharing options...
FrankTheDog Posted February 24, 2016 Share Posted February 24, 2016 Is your truck 1990 model year? If so the 90-98 brakes are what you have. Also, you can install 99-01 brakes on a 90-98 axle by using the wheel bearings and rotors from the 99-01 on the 90-98 axle. That's the only differnce between the two style axles. Link to comment Share on other sites More sharing options...
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