Dusty - For the seals http://federalmogulmp.com/en-US/Pages/Search-Parts.aspx

If you are doing the pumpkin swap and keeping the old driveshaft you will probably have to keep your original pinion shaft. Even if you can use the shaft on the new pumpkin, it is a good time to replace the oil seal and install a sleeve on the shaft.

This requires some serious work. First use a center punch to mark the end of the pinion and the nut so you can return to the proper location of the nut. Then you can remove the cotter pin.

Now is where the wrenching gets serious. The pinion nut is 1-5/8" and needs a 12 point socket that will fit in the recess on the shaft. A heavy impact gun is most helpful in removing this nut, original torque spec was about 200 ft-lb. After removing the shaft replace the oil seal and install the sleeve on the shaft, using some loc-tite to secure the sleeve. The sleeve is used to maintain the smooth outer surface diameter against the oil seal.

Place the shaft back on the pinion and tighten the nut until the punch marks are aligned.

Fred
52 3600
69 C-10