differential

Setting up a differential does take quite a few steps so I can see where it could get quite involved and people may skip some parts feeling there not all that important to add to the video. Generally setting up a differential isn't all that hard if you have the tools to do it but sometimes you get an ornery gear set that can give you fits. I've had a couple that were real difficult to get a decent pattern on but since your asking about doing one with a spool I assume your using it in a race only application where a noisy set of gears isn't much of an issue. Last night I started doing a 3rd member with a set of Richmond 3.91 gears and a spool for my car when I go to the track and I set the pinion depth to exactly what is written on the pinion and double checked it and ran a pattern sweep and it's hardly even on the bottom (toe) of the tooth on the drive side. Double checked everything and it's what Richmond says to set it at but it's not right so now I get to wing it and find the right pin shim. Luckily I have setup bearings so I can zip it apart, change the shim and have it back together in very little time.

BTW: if you noticed I said it isn't that bad of a job if you have the tools. The first one I did I only had the very basic tools necessary to do the job and it was a whole lot more work and time consuming than it is for me now that I have all the necessary tools and extras like setup bearings and a case mount adapter that I built to mount a case on my engine stand. That really helped a lot because it's mounted solid and I can rotate it when needed. I used to strong arm them in a big vise and man is that work and can be dangerous because the case is so odd shaped it's hard to get them clamped down.

BTW: in post # 4 I mentioned checking out a thread on home made tools and I errantly forgot to add the link. Sorry about that. Here it is

http://www.forabodiesonly.com/mopar/showthread.php?t=58818