C-body 8-3/4 or truck 8-3/4 rear

I have B, 68-70 and 71-72 , C and E Danielsville Pa, Housings and axles . Backing plates and drums . and some centers. I don't sell 742's . There is a 489 323 clutch sure grip here Just got it and a 489 391 cone style. I may have a truck housing out of a 72 150 . There are some High ratio 742's here 276 294 323.
Current ratio in the van (8-1/4) is 3.08
(Could be 3:00) I just bought an overdrive a518 for it.
So going 3:23 would be not a huge difference. I also just now found out the axles can be drilled for the small bolt pattern. I may go that route. It’s a street van. Not looking for 1/4 mile stuff I do with my cars.

Keep me posted as your about 1/2 hour above Allentown. Like 5hrs away. My oldest daughter lives in Lancaster so a visit is a few weeks away.
Thank you,
Joe