1998 Ranger 2.5 129k miles.
Question 1:
I have an oil leak, front of the engine towards the bottom. It's not dripping but the area is caked with oil wetness and mud. UT vids led me to suspect crankshaft seal needs replaced. Problem is when I search for the part on RA, Amazon, AZ, etc. all are giving me different parts (as in the part itself, not just the part number). Heck I am so confused. Which is the correct part number? Should I also replace the camshaft seal? I will be replacing the radiator due to a leak, TStat, serp. belt, idler, tensioner. Thought with the rad out might as well take care of the oil leak.

Question 2:
I am about to start suspension job. Specifically replace upper control arms, lower control arms ball joints and bushings only, sway bar links and stabilizer bar bushings. I am watching UT videos and I am pretty handy. Just that I have never had a need to do this job until now Any tips you can share on the order of removal and then installation? or any other helpful tip.