Yeti, 'Doc', is that meant to be disc? TSM used C20 and similar discs, however they are not rated for 1.5 ton, unless the GVW falls in the 3/4-1 ton axle range. The disc used depends on bolt pattern, do you have 8 on 6.5" or 5/10 on 7.25" or something else?
Ed
To make it work I’m going 8 on 6.5, I understood this lowers my capacity considerably and this actually suits