Check this out, because I thought that is was old school cool.

https://youtu.be/oqDw1rsFNhU

By the way, I have never seen a welded open rearend last long.....

 

Not very feasible for us. Would have to run C-clip eliminators.

Mini spools are cheap.

 

Excellent point regarding the c clips

 

That's one of the dumbest things I've ever seen. Lead is too soft for that. The gears are going to work loose and then start breaking chunks of lead off. If a chunk gets stuck between the ring & pinion it's going to lock up the rear end and cause a huge crash. Just my opinion.

 

More than likely the lead will just creep out in flakes and shards and the ring and pinion will crush it into dust. I don't think a chunk of lead is capable of locking up the axle any more than a broken-off steel tooth can. I am not sure that the molten lead idea is very sound engineering though. A few minutes with a MIG welder is probably a faster and even cheaper solution.