njsteve and few others know their Mopars. I can tell you this much. Take a camera (digital preferrably) with a good battery and take lots of photos. Particularly the fender tag (s), engine stamp pad (below the exh. mans. toward front on passenger side) and photos of stamp pad for tranny (pass. side for 4 spd and driver's side for auto. Rear axle will have codes on back side of pass. side. If 4 speed shld have a Dana 60. Shld be a partial VIN on rad. support bracket and I believe (I know the '70 RRs had them here) the driver's side rear quarter gutter area under the rubber seal. Of course photograph the VIN on the dash too. Make sure your photos are in focus and set yr camera to Macro (looks like a little flower icon) for the close up shots. Photo any docs he has too. Good luck.
