Beefing up A500 overdrive

my 2 pennies worth. i have a buddy with a 3/4 ton 4x4 diesel. he had a bad vibration and it was u joints. it finally cracked the o/d housing and he got 1 off ebay. i got the diesel o/d unit and went into my auto trans parts book comparing o/d parts. there are a couple plates that are different between the diesel/gas. getting the diesel plates and extra clutches should, i say should allow building the o/d to diesel specs. then problem solved. change for a nickel please.