Front End Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Zonaman · 06-09-2009, 03:44 PM

Are the spindles and hubs from a six lug, '69, C10 interchangeable with a C20 same year?

Thanks.

Tx Firefighter · 06-09-2009, 04:23 PM

Not without changing the ball joints too.

chevy_mike · 06-09-2009, 04:48 PM

I thought the lower arms were different. The ball joint is larger in diameter and won't fit into a 1/2 ton arm.

BAGNDRAGIT · 06-09-2009, 05:03 PM

Quote:

Originally Posted by chevy_mike

I thought the lower arms were different. The ball joint is larger in diameter and won't fit into a 1/2 ton arm.

I believe you are correct. swapping to a 1/2 ton LCA may solve that, and changing the upper balljoint.

why not go disc though?

70rs/ss · 06-09-2009, 05:27 PM

Other way around 1/2 and 3/4 ton A-arms are the same, the LOWER BALL JOINT is bigger (the shaft, not the part that presses into the A-arm) on the 3/4ton, thus if going to 3/4 ton spindle, use the 1/2 ton A-arms and swap the lower BJ to 3/4 tons and you are golden! I second the why not go discs!?

chevy_mike · 06-09-2009, 05:48 PM

Quote:

Originally Posted by 70rs/ss

Other way around 1/2 and 3/4 ton A-arms are the same, the LOWER BALL JOINT is bigger (the shaft, not the part that presses into the A-arm) on the 3/4ton, thus if going to 3/4 ton spindle, use the 1/2 ton A-arms and swap the lower BJ to 3/4 tons and you are golden! I second the why not go discs!?

I beg to differer. When I was looking to do a cheap disc brake upgrade and use spindles (which I bought) from a 88-98 LD 3/4 ton (per instructions found on this site), it stated you had to change the lower A-arms to 3/4 ton, so you could use the late model 3/4 ton ball joint and spindles. I went to NAPA and compared the early 1/2 ton, 3/4 ton and late model 3/4 ton. The early 1/2 ton ball joint size (the part that presses into the arm) was noticeably smaller and mic'ed out smaller. I didn't save the numbers so I don't recall them but they were different between the 1/2 and 3/4 ton sizes. The lower A-arms are different.

06-09-2009, 03:44 PM	#1
Zonaman Registered User Join Date: May 2004 Location: Chandler, AZ Posts: 519	Front End Question Are the spindles and hubs from a six lug, '69, C10 interchangeable with a C20 same year? Thanks. Attached Images __________________ 69 C-10 LWB, 350, 700r4, 3.73 posi-traction, front disc brakes. Built for the desert- She can take the heat! Vivat Rex Chevus! Last edited by Zonaman; 06-09-2009 at 03:45 PM.

06-09-2009, 04:23 PM	#2
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: Front End Question Not without changing the ball joints too. __________________ I'm on the Instagram- @Gearhead_Kevin

06-09-2009, 04:48 PM	#3
chevy_mike Never Ending Projects Join Date: Jul 2006 Location: San Diego, CA Posts: 3,836	Re: Front End Question I thought the lower arms were different. The ball joint is larger in diameter and won't fit into a 1/2 ton arm. __________________ . 1965 C10 Panel, Tiki Express http://www.67-72chevytrucks.com/vboa...d.php?t=506580 SOLD 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often...

06-09-2009, 05:27 PM	#5
70rs/ss Registered User Join Date: Dec 2004 Location: Northern AZ Posts: 7,271	Re: Front End Question Other way around 1/2 and 3/4 ton A-arms are the same, the LOWER BALL JOINT is bigger (the shaft, not the part that presses into the A-arm) on the 3/4ton, thus if going to 3/4 ton spindle, use the 1/2 ton A-arms and swap the lower BJ to 3/4 tons and you are golden! I second the why not go discs!? Last edited by 70rs/ss; 06-09-2009 at 05:28 PM.



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