In 1970 I bought a 64 Valiant wagon with a 273 2 barrel and a 4 speed Had a 7 1/4 rear, After breaking 2 with the l 60s I ran/ I found a wrecked 69 Charger in a junk yard with a Dana. Problem solved- the wagons had rounded out wheel wells and air shocked gave me the clearance- Tires stuf out a lot- Wild with rooster tails when it rained...