Well, my car has no airbags so he can ride in the front like a big boy!

Actually he could ride along at an autocross, for the road course the minimum age is 12 w/ parental consent. I'll have to check what the nearest ones are and plan my trip to be in SLC for an autocross weekend.
I tough you had a built tranny and dfrential with straight cut gears. First time I heard someone has that noise cause of Poly mounts. I have them all in my FC and it doesn't make any sound like that.....
Indeed, it is a combination of things, That diff has an unknown (300k?) milage on it, so I'm sure it is out of spec, but the LSD still takes 90ftlbs to break! I think there is a rear wheel bearing just starting to talk to me too, but maybe it is in the diff output flange. The old girl is due for some service in the rear end honestly, I have a spare rebuilt diff, just no real reason to put it in yet. Everyone seems to enjoy the gear whine!
