As always I am looking for a way to upgrade my '93 W350 and save money by doing it myself. I recently replaced the steering box after 220k miles and felt all the free play in the stock steering shaft joint, so checking around, the Borgeson replacement was about $260. 00! After doing some home work I found that buying the yokes and joint thru Spicer and cutting the end of the stock shaft then putting in a 3/16 key did the trick. I spent a total of $56. 00. The Spicer part numbers are 10-4-431SX and 10-4-13 for the yokes and 5-170X or 5-103X for the joint. I hope this save others a little money as it did me.