lay'n it out

ok i'm in the process of bag'n and bodydrop'n my 72 c-10 and i'm wonder'n how all yall have laid out the back. i've done alot of s-10s rangers and 1 or 2 new fullsize's but not a c-10. but anyways i've got it notched but the trailing arm hits the frame wats the best way to fix this?