I got my Bowtie Overdrive Crossmember yesterday, and of course I went to intstall it immediately. First I weighed it. It's 18lbs, the stock crossmember is about 23lbs. Only a 5lb savings, but it looks much better. My early 700R4 has two trans mount positions. I had been using the rearmost with my stock crossmember. The Bowtie crossmember wants to use the front trans mount and there is major interference between the crossmember and the rear mount. What's up with that. Do later 700R4s not have the rear mount? What should I do. Find a later tailpiece. Order the 80 Crossmember? Help!