Hello together I have a small problem with my k10 stepside. I have installed a 383cui. stroker in the pond and have constantly a gearbox damage (th350). either the converter bell leaves or the complete housing travels the length after on or the planets are traveling. is now the 4 transmission on 2000km that I have scrapped and don’t know any more. is here jmd who knows about it or can help me ? times some data from the bowl. 383 stroker with 360kw th350 with distribution gearbox (all-wheel) 2x oil cooler 18x39x15 mt with original axle translation 12 bolzaen.Remember the overstepping is far too long for the tyres