They will fit the 2" and 2 3/8" bolt setups. notice the dual milled patterns.
I didn't increase the anchor, I milled them .125 to lower them .250 so I could use the standard 15" wheels I wanted to use. These came with 11.250 rotors, I engineered them for most nine inch rear ends and 11" rotors.
Please feel free to make me an offer on the system. I will send everthing but the parking brake brackets ( unless I find them between now and when the system is shipped ). All the bolts, washers, retainers, calipers, pads ( used but have almost all the pad is left ), clips and anything else that you would need to make this work.
You will need your Tee bolts with nuts ( should use the same ones on your 9 inch rear ), new seals, maybe a dust bracket spacer and maybe parking brake brackets ( I will look for the ones I have ).
You can PM me or email me.
Thanks for the interest. I ordered a new trans, I will need to be cleaning out all of the built parts.