Hello folks, the 518 that i was going to convert into an 8speed didn't ever work out. What happened instead was i found a 520 hc close to home with rusted paint, grenaded engine and bad frame (from engine plate not tight). I swapped the hc running gear, hydraulics and all the other bits n peices onto a 414 8 frame then finished it off with the onan and 518 sheet metal
I like it!