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**dozerbill72** · 07-15-2019, 10:50 AM

It has to do with leafs vs. coils. Leaf spring 3/4t got the D60 no matter what engine combo, just different gearing. I have a 71 C20 with a 350/350 turbo with a D60 and 4.10 gears.

07-15-2019, 10:50 AM	#11
dozerbill72 Senior Member Join Date: Oct 2015 Location: Berryville Arkansas Posts: 402	Re: Longhorn trucks - what were the options It has to do with leafs vs. coils. Leaf spring 3/4t got the D60 no matter what engine combo, just different gearing. I have a 71 C20 with a 350/350 turbo with a D60 and 4.10 gears.