Today when i was removing the crossmember on the 700R4, i noticed that the passenger side had fine threaded bolts, and the driver side had standard thread. Is this right? I tried looking for the bolts on the AC Delco web page but nothing came up. Help Please!

 

Bump

 

someone probably stripped it already and retapped it if IRC they are metric thread

 

They were metric, originally; 10mm (the size that has 15mm heads), whatever the std thread is for that size, 1.5mm I think.

Sounds like you've got the same thing going on that about everybody does: the lame chinesium nut-shaped object in the little weenie cage that the factory used, failed at some point; and somebody applied some sort of alternate ethnic engineering to it.

Best thing to do it to take about a 1½" hole saw to the floor right above them; get rid of all the stupid factory one-time-use-only crap; tack-weld a couple of actual NUTS there; and put plastic hole plugs back in the floor under the carpet.