There is a heavy duty looking one for 200+, I installed the less expensive one and it has been fine. If you have an OEM unit there are NOS rebuild kits out there for about the same price as the cheaper one, maybe up to 100.00
Forgot to mention...
only odd thing about the one I bought from PST, the holes in the shaft where the cotter pins go for the castle nut seemed drilled too high on the shaft so I had to put a thick washer under the nut to raise it high enough for the cotter pin to engage into the castle nut.
