Some suspension and brake questions

Oldmanmopar said

All small 4" bolt pattern cars had small ball joints. Some 73's were 4" bolt pattern with drums. all 74 and newer were 4 1/2" bolt circle. After buying and stripping many of these cars that is what I have seen.

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Wrong. I pulled a set of BBJ UCAs off a 74 valiant SBP drum brake car in a local junky. It had the larger finned drums. It was a slant sux car that was never apart. In fact I was told this tidbit by a guy who runs a local mopar wrecking yard. He is really into these cars. He told me look for the 10," finned drums. He was right. I bought a second set off somebody else on fakebook. 75 duster SBP with 10" finned drums. The guy damn near gave em away. I asked his price. $20 plus shipping. Umm ok, where do I send the PayPal. LoL