Im pleased to see someone who does things properly. I just spent ages fixing a transmission bellhousing on a crane repower. Had a twin disc hooked to a perkins straight six diesel. It was repowered some years ago. For some reason unbeknown to customer it ate coupling and wrecked torque converter. They bought a new trans and fitted it. Sent other trans away and had it rebuilt. I got involved when it ate second transmission, coupling etc. I went back to basics. Clocked up spigot on engine and it was about .014" runout. Was a factory part. Then took flywheel and mounted in lathe off a machined fixture and lots of things wrong. Fixed them. I had the trans bellhousing and on the bench and set engine housing on top and it fell it. Was .030" loose. It was an inch thick adaptor plate to transition between both bellhousings. So mounted up trans bellhousing on dummy block, bolted on plate in preparation to boring out to make a hoop sleeve and it was running out 0.028". So I was dealing with very loose spigot and stuff out of line. Bearing in mind it had eaten two expensive units. Fixed it all, then had to install. Bill of over$15k. Drives quietly now.
