Yokomo YZ-2 "Carpet" 3 Gear Transmission Case

Basically this is a onetime use unit, the previous one I had was taken apart to do maintenance the screw holes were stripped which in turn made it probably fluctuate between the top shaft and idler gear, Which I had to replace both. I bought this one to replace the old one, it assembled well enough but when I went in to change Diff fluid the screw holes were stripping without any force upon reassembling after first use.

I hope these go on sale because I'll be buying them all, for now I will have to run longer screws with a nut on the other end where I can on top.