Quote:

I believe Banjo Mathews started putting truck arms on B-bodies in late '67
Gus


Nope, in 1974 Petty and Baker in the K&K Charger along with the other Dodges were all using leaf springs. After Nascar mandated tiny carbs for the big blocks, K&K boycotted the rest of the year and that was the end of bib blocks in Nascar. But Nascar wasn't thru and mandated the truck control arms in 75 for all cars to remove the supposed leaaf spring advantage Petty enjoyed over the other makes. Petty won 13 races in 73 and Baker won another 4 giving Dodge 17 wins out of the 30 races ran that year. Can you imagine how quickly Nascar would change the rules if Dodge won 1/2 of the races this year.
By the way, if your car still had the torsion bar adjusting bolts inside the driver compartment, it had to be a 69 or older as Nascar outlawed any thing that allowed the driver to adjust the suspension while racing in 70. It was considered an unfair advantage for the Mopars.

Old Geezer Racing