Finally found a set of BF Goodrich Radial TA's (215/65/15) and Billit rims for the 85 from a buddy. They look great and fit perfectly. My next project is a posi rear. The 85 has the stock 10 bolt open rear (2.41, I think?). My question is what other drum to drum rear ends will fit (Monte's, Malibu's) and how can I id them at the local bone yard? Specifically what model year. Would it be easier just finding a posi unit and installing it to the stock rear (along wiht changing the gear). Thanks for the help again. 1985 350ci, TH400.