Actual 1966 TH400 vs PG column differences?

[HOTFUN]

Well luckily during the winter, I was rewarded after I traveled 400 miles to capture my 66 C20 Custom Camper with factory air but more rare with the factory original turbo 400 complete from column to the linkages to the brake cables. I have been taking this apart carefully as a rare piece of history, piece by piece, and comparing it to my original 66 C30 327 PG truck donor. Way more differences than meets the eye. All this will be restored, rebuilt, and installed just as the factory did on the line built C20 into my bare 66 C10 swb frame. I have the T400 crossmember and park brake cables all refit and relocated for the dry run on the swb frame. Fit just like it was factory installed but why wouldn't it since they actually made it on the 67 115" frame using the same brake cables.

Pictured is what blew me away that it wasn't just a shift indicator dial addition for the T400 line installation but the actual column shift tube and detent plate was totally different. Of course they also used a different neutral safety switch with BU too.
Check the picture of the detent plate comparisons between the turbohydramatic 400 column on the LH side to the powerglide column on the RH side. The linkage arm on the LH side TH 400 is actually 5/8" longer and a different angle which must work with the swing arm swivel linkage that mounts about straight below in the frame channel on the TH 400 truck.

Thought some of you fellow purists my enjoy this information.