I've been having nonstop issues with the 4wd on my 99 ram 1500. I tried the posilock on the front axles but still am having problems. Does anyone sell a single piece axle for the same 44? I've looked and I'll I can find is one for the same 60. I appreciate any help

 

What problem are you having?

 

EMS off-road sell a single passenger side axle shaft. Might be worth fixing the issue at hand that causing your problems. Ive been running 37" BFGs on my OE dana 44 front axle without a lot of problems. Just switch to the posi loc (which you mentioned) and only run Spicer brand u joints.
If the problem is with the coupling of the axle shafts, just spend a little time getting it adjusted so it engages smooth when you need it!