71 C30 dually restoration

[UncleMatt]

Hi all,

New to the forum and loving all the great posts and helpful information!

I just picked up a 71 C30 dually tow truck. I'm convirting it to a flat bed daily driver. Some of my plans include an 8-10 lug big rig conversion with air ride. A cummins 12valve with stacks and NV4500 5 speed.

I'm looking at using American force adapters for the big rig convirsion but they only offer them from '73 on. Is the 8x6.5 lug pattern on my truck different from the 73-87 1 ton trucks? I can change hubs and rear axels but would rather not if it's unnecessary. Thanks in advance for any help
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