It looks like I just missed out on a set of 66-67 hangers. Drat!
The hangers on my car were too far gone. Soon (hopefully) I'm going to put up the TA 2-1/2" system. Does anyone have recommendations on hangers? I'm open to non-stock solutions too, if that's an option.
Thanks - Bill
Thanks. I can't believe I had a brain f*** like that. The pins go between and the bolts in the holes. Duh.
The two I rag joints I bought have different grounding arrangements. One has a stamped sheet metal piece that goes over one pin and is held by both bolts. The other has a twisted piece of sheet metal that goes from one pin to one bolt.
The steering shaft on my 67 has two different sized holes for the pins on the "rag joint". I've ordered new couplings from two sources (it's been a while - I can't remember where) and they both have same-sized pins. Then size on the new couplings is too big for the smaller hole in the end of the shaft.
Does anyone know where to get the correct coupling?
Be sure to check the service manual. There is a phase angle requirement between the two shafts. I can dig it out if need be...
Edit: see figure 40-78 "Propeller Shaft Phasing", Section D of the manual, page 40-47.
Thanks for the before-and-after results. I'd change my oil after that. I've heard that stuff is hard on oil and this probably gave it a good opportunity to get past the rings.
Some more info here:
https://www.v8buick.com/index.php?threads/9-3-8-rear-differences.71740/
As others stated, the only parts that interchange with 9 3/8 is other 9 3/8. The only market is used except for a stray NOS piece here and there...
Personally I wouldn't go through the work to change an existing rear from 3.07 to 3.23. Not enough noticeable difference and anytime you change gears in a rear like this you need the specialty tools for setting pinion depth. You might be better off looking for an entire differential with posi and gears you like.