which driveline?

[dvboth]

I have a 72 duster with a slant 6 and I am putting in a A-833 4 speed and an 8 3/4 rear end, so what driveline do I need?

 

[grumpuscreature]

Take the one you have to a driveshaft shop, have it shortened 3 3/4", and replace the front slip yoke with one for a 727/833...

 

[dvboth]

Ok sorry more info, duster has 7 1/4 now with a 3 speed manual, so does that still apply?

If I put the 4 speed and the 8 3/4 in?

 

[4speeds4me]

Yes. The distance from the tailhousing to the yoke on the diff is shorter with the 8 3/4...