Drivetrain challenges

Jumping around a bit here from suspension to drivetrain, but I don't want to get too locked into the component level (actual control arm geometry) until I do some more parametric design (getting a good read on what camber curves, etc I want).

On our FSAE cars, while the drivetrain layouts we used were generally functional, serviceability was lacking. I wish I had some pictures to illustrate, but for now it appears the remote CU Durning Lab login is down. Anyway, items requiring service:

1. Adjusting chain tension. Invariably we had to do this as chains wore in, when going with a different sprocket arrangement, or when replacing a chain. We generally used a two turnbuckle arrangement holding the diff carrier to the frame, so alignment and position could be adjusted. It wasn't ideal, and certainly wasn't fast.
2. Replacing driveshafts. While we never broke a shaft, these had to come on and off for a variety of reasons. Snapping a shaft definitely is a possibility with a higher power car. In any event, our setup was a splined shaft, with a tripod and housing on both ends. Total of 12 socket head cap screws (SHCS), in 6 pairs of safety wire, had to come out to get the thing off.
   
   Not to mention, the process was a mess and you'd wind up putting bags around everything to keep from losing all the grease and what have you.
   
3. Swapping sprockets. You'd have to take tension off the chain, undo another 6, safety-wired fasteners, and get the thing off. Time consuming.
4. Removing the diff. Similar story, time consuming. Remove tensioners, cut safety wire, undo 12 bolts, take it out, do whatever, replace it, 12 bolts in, safety wire them all.

Time to think up some solutions that make all those quick and easy. Maybe I'll have some CAD this afternoon between games. Giants @ Eagles, Vikings @ Packers, Yankees @ Phillies.

I'd be happy if both teams from Philly lose, and if it's a good matchup at Lambeau.