From MBaxter@compuserve.com Wed Mar 1 22:29:49 2000 From: Michael Baxter "Jesse Serrano, II" writes: >> Doc, I can understand your confusion. The hubs on the 73-77 J20's (sometimes 78) are much larger and beefier than the hubs on the 79 (like mine) and up J20 's. If you look at them comparatively you can see the difference: the later units are tapered from the rotor out where the earlier models are square shouldered and straight out. Thanks to Zack Heisey's broad collection of goody's I could compare them first hand. The bearing set is larger for the earlier and they require different hub-locker part number than the later. In fact, I have heard such rave reviews concerning Mile Marker lockers that I wanted to install them during my truck's regeneration (ground up resto and four door cab), however, Mile Marker does not make them for the larger style hubs (though I'm still investigating the possibilities of crossing over a different application.) << Jesse, I knew the '77-'79 J-20 8 lug 44s used the same hubs as my '79 WT's 6 lug so, I visited the Warn site (http://www.warn.com) and found the following. The differences in the J-20 appear to be '76 and back. The numbers are, for example the Wagoneer listing, 19 spline and then 4 different hub model's part #s. The third one over is the Warn Premium model # I think. -------------------------------------------------------------------------- Gladiator, Wagoneer, Pickup '73 & Prior 10 29062 M54 -------------------------------------------------------------------------- Full Size Wagoneer, Cherokee, J-10 Pickup, Commander '74-91 G 19 9790 M248 20990 M198 --------------------------------------------------------------------------- J-20 Pickup (heavy axle) '72-76 19 9072 M197 --------------------------------------------------------------------------- J-20 Pickup '77-87 19 9790 M248 20990 M198 --------------------------------------------------------------------------- J4800 Pickup, Camper Spl '69-74 10 6094 M175 --------------------------------------------------------------------------- Jeep Station Wagon, Pickup '65 & Prior 10 29062 M54 --------------------------------------------------------------------------- Michael Baxter, MBaxter@Compuserve.com-OR-N7OVD@arrl.net http://ourworld.compuserve.com/homepages/MBaxter From Reno, NV USA on 01-Mar-2000