Bolt in differential swaps - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jk1967 · 01-11-2014, 08:35 PM

what Differentials are direct bolt ins for 1967 c10. Trying to swap 6 lug to 5 lug?

67ChevyRedneck · 01-11-2014, 09:05 PM

The only direct 5 lug bolt ins will be a complete 71/72 rear axle if your truck is a coil spring truck. No more coil spring rear trucks after 72. I do not know about the leaf spring rear trucks.

There are companies that make bolt in 5 lug rear axles for the 67-70 rears for around $300. You can not use a 71/72 axle in the 67-70 housings, as the 67-70 rears are 1.5" NARROWER than the 71/72 rears, which may be a deciding factor for you. If you want the rear track width to be close to the front you have to run 3/4" spacers or run narrow wheels up front if you want the wheels to be in about the same spot in the fenders.

You can also pull your axles, have them redrilled for 5 lug, and have new studs pressed in.

Expect to pay $150-250 for a good rear. I just did this myself. I picked up a good 3.73 '72 rear for my 67.

70LonghornCST · 01-18-2014, 07:55 PM

Hi jk1967 and Welcome to the forum! I'll move this to the General Forum area so you can get some more assistance with this. Good luck!

01-11-2014, 08:35 PM	#1
jk1967 Registered User Join Date: Dec 2013 Location: Aiken South Carolina Posts: 1	Bolt in differential swaps what Differentials are direct bolt ins for 1967 c10. Trying to swap 6 lug to 5 lug?

01-11-2014, 09:05 PM	#2
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Bolt in differential swaps The only direct 5 lug bolt ins will be a complete 71/72 rear axle if your truck is a coil spring truck. No more coil spring rear trucks after 72. I do not know about the leaf spring rear trucks. There are companies that make bolt in 5 lug rear axles for the 67-70 rears for around $300. You can not use a 71/72 axle in the 67-70 housings, as the 67-70 rears are 1.5" NARROWER than the 71/72 rears, which may be a deciding factor for you. If you want the rear track width to be close to the front you have to run 3/4" spacers or run narrow wheels up front if you want the wheels to be in about the same spot in the fenders. You can also pull your axles, have them redrilled for 5 lug, and have new studs pressed in. Expect to pay $150-250 for a good rear. I just did this myself. I picked up a good 3.73 '72 rear for my 67. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 01-11-2014 at 09:13 PM.

01-18-2014, 07:55 PM	#3
70LonghornCST Moderator Join Date: Jun 2008 Location: Modesto, CA Posts: 5,775	Re: Bolt in differential swaps Hi jk1967 and Welcome to the forum! I'll move this to the General Forum area so you can get some more assistance with this. Good luck! __________________ 2018 Chevy Crew Cab 2006 Impala SS 1965 Plymouth Sport Fury 1970 Chevy Longhorn Bucket Seats Shoulder Belts Front Tow Hooks Factory Air Factory Speedwarning, Tach & Vaccum Factory Tilt CST Package AM/FM Radio Bumper Guards Richard 70 Longhorn CST Build Adding an AM/FM Decal



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