In the middle of working on the rear suspension, I finally started putting the differential (a.k.a., Pig, Hogshead, third-member, diff, chunk, carrier, etc., etc.) back together with brandy-new shiny parts. On the menu for this center section is a new 3.89 ring and pinion from Motive Gear, new Timken bearings everywhere, a Raetech solid pinion shim kit, an Eaton Detroit Locker (a.k.a. “soft locker”) differential, all stuffed in my original nodular iron case and finished off with a genuine Daytona pinion support. This is just about as bulletproof as any factory 9-inch ever got.Now, I won’t go through the details of a complete 9-inch rebuild as there are many good resources for that information already, but I will touch on a few things that I did and/or learned along the way. In fact, for anyone contemplating a 9-inch rebuild, I would recommend checking out the video tutorials available from Ken Collins at Bad Shoe Productions. Ken is a talented and very experienced Ford Master Technician and he shares his vast knowledge in affordable, easy-to-follow educational videos. Look him up and tell him I sent you. You won’t be sorry!
In the meantime, I am very happy with how the rear axle assembly is shaping up and I enjoy the feeling of confidence that I have knowing I spared no effort in getting the “right stuff” in place.
|In similar fashion to the above photo, this cap is marked with a large "R" to indicate this is the RIGHT (or passenger's side) main cap.|
|On the coast face of the gear, the pattern is again almost perfect. The contact is biased slightly toward the toe (e.g., the inner diameter) of the gear tooth and is well centered from root to tip.|
|While not generally something that is referenced in gear pattern charts, the pinion contact should also be well centered over the entire tooth face, similar to the ring gear. Here is the coast side faces showing a nicely centered pattern.|
|And here is the drive side faces showing excellent contact position as well.|