I just swapped in an '05 Rubi D44 and it does not have anti-lock brakes. My front D30 does.
Should I leave the fronts connected without having an anti-lock rear? I have the wiring harness for the tone rings but the D44 doesn't have the tone rings. Am I better off just leaving the rears disconnected or should/can I simply install the necessary parts whatever they may be?
The ABS system won't work if one axle has ABS & the other doesn't. If you want ABS, it should be a relatively simple task to find a pair of D44 axle shafts that have the required tone rings since later model Dana 44 equipped TJs had ABS as an option. Once you install the axle shafts with the required tone rings, it is a simple matter to transfer the sensors from your old axle to the brake backing plate of your replacement axle.
Depends on the profile of the shaft where the rings would fit.
Might entail a trip to your local machine shop with tone rings and both sets of shafts. (hint-I would machine the rings to fit, not the shafts)
The chromolly shafts make it unlikely the tone rings would fit. It looks like it is time to bite the bullet & just disable your ABS system which is what I ended up having to do with my previous TJ's ABS when I also replaced the rear axle with a D44. I would like to have ABS but I'd rather have the chromolly shafts like I'm running too.