Tagging onto Mike's suggestion, see if you can find used ones out of someone's scrap pile instead of some that's been supporting the weight of a truck for 70 years.
Matthew 6:33
1952 Chevy 1/2-ton 3100 Late '55 235/SM420/torque tube 3.55 Dalton Highway survivor (using original 216) www.truckwithaheart.com