First off, there is no such thing as "posi track" in a Mopar. It's either a SureGrip or a Trac Loc depending on model and axle. "Posi" is a brand X term.
For the D60 you will need a Dodge D60 from a W200/W250 or W300/W350 pickup so equipped from '75-'93. Be aware that most 3/4 ton Dodge trucks use the D44HD front axle and some 1 ton Dodges also use the D44HD. A dually axle will obviously have dually hubs on it so those would need to be changed out for SRW front hubs on a SRW truck. Otherwise it will be a 100% bolt in deal other than the front driveshaft which will either have to be swapped out for one from a '75-'79 full time 4WD truck with a D60 front axle or you will have to have your current D44 driveshaft shortened. Make sure you grab the spring plates off the D60 truck as your D44 plates will not fit the larger axle. You will also need new U-bolts. Never reuse axle U-bolts. Your stock drag link will bolt up and you can use the D60's brake hose or buy a new one for a D60 truck if needed.
Also be aware that some '89-'93 trucks, particularly the Cummins automatic trucks with the 3 speed 77 transmission, will have a D61 front axle with either 3.07 or 3.55 gears. These axles are designed with a different pinion off set than a normal D60 and it can be a very large pain in the ass to swap gear ratios or find aftermarket differentials to fit. Also keep in mind that all '75-'79 Dodge trucks are full time 4WD and a D60 from these axles will have drive flanges on the hubs from the factory to keep the axle locked in all the time. '80-'93 axles will either have Dualmatic external locking hubs or the last few years usually have internal Warn locking hubs. The Dualmatics can be swapped and drive flanges bolted on if needed or you can just leave the hubs locked in.