The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

**nitrosport_5** · 04-14-2018, 02:06 AM

My 72 k20 has an eaton rear with 4.10 gears and a locker. with 35" tires, it could use a slightly lower gear. I can get an eaton with 4.56 gears out of a 67 c20 for a decent price, would the gears work for my 72? I was hoping to be able to use the housing in the 72 k20 and build the gear set with the 4.56 gears and my locker.

04-14-2018, 02:06 AM	#1
nitrosport_5 Senior Member Join Date: Jul 2012 Location: St. John, Washington Posts: 617	Eaton HO52 ring/pinion parts interchange My 72 k20 has an eaton rear with 4.10 gears and a locker. with 35" tires, it could use a slightly lower gear. I can get an eaton with 4.56 gears out of a 67 c20 for a decent price, would the gears work for my 72? I was hoping to be able to use the housing in the 72 k20 and build the gear set with the 4.56 gears and my locker. __________________ "Rusty" 1972 K20 Cheyenne Super, 496, A/C, Tilt, Tach, Buckets, 4l80e/NP205, 4" Rancho Lift, 35" BFG AT "Ramp Truck" 1972 C30 Ramp Truck 350, Air Bags, Factory A/C. "1968" C10 Shortbed project