Control Arm Questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TKulak · 03-09-2015, 07:39 PM

Hello to all. I am performing a frame off on a 70 C10 SNB. It is completely torn down the frame is heading off to powder coating soon. My question is, I have purchased 6 lug disc brake kit and drop spindles from Brothers. I tore the control arms apart and all the thread are virtually non existent. What is my best option outside of tubular control arms? I need a solution pretty quick as I was going to powder coat these as well. All input appreciated. Thank you in advance.

**PGSigns** · 03-10-2015, 06:37 AM

I don't know of any holes in a control arm with threads in them. What part are you concerned with?
Jimmy

TKulak · 03-10-2015, 06:45 AM

The ends on both the upper and lower control arms. The shaft that goes through the bottom of the control arms is the threaded on the end. The cap that screws on the end of this that has the grease zerk is threaded on both the inside and outside. It screws into the shaft and then looks like it was threaded on the outside to screw into the control arm. These threads are damaged/non existent. I am concerned about this.

**PGSigns** · 03-10-2015, 12:22 PM

They are just rings made into the OD of the bushing. If they are worn you need to replace the shafts. They do not thread into the arms.
Jimmy

TKulak · 03-10-2015, 12:35 PM

Ok that is what I needed to know. So only the shaft and the inside of the cap are threaded? It appeared that the outside of the cap was threaded as well. The shaft threads and the inner cap threads are in good shape.

SCOTI · 03-10-2015, 01:30 PM

Quote:

Originally Posted by TKulak

Ok that is what I needed to know. So only the shaft and the inside of the cap are threaded? It appeared that the outside of the cap was threaded as well. The shaft threads and the inner cap threads are in good shape.

Technically the outside surface of the caps/nuts are threaded but they are not what secures the assembly. The threads in the arms & outer side of the caps/nuts are not cut deep so that's why they might appear worn. As indicated, the shaft threads & inner cap/nut threads are what keep things together.

TKulak · 03-10-2015, 01:54 PM

Thank you for the information!

03-09-2015, 07:39 PM	#1
TKulak Registered User Join Date: Nov 2014 Location: Perry, OK Posts: 21	Control Arm Questions Hello to all. I am performing a frame off on a 70 C10 SNB. It is completely torn down the frame is heading off to powder coating soon. My question is, I have purchased 6 lug disc brake kit and drop spindles from Brothers. I tore the control arms apart and all the thread are virtually non existent. What is my best option outside of tubular control arms? I need a solution pretty quick as I was going to powder coat these as well. All input appreciated. Thank you in advance.

03-10-2015, 06:37 AM	#2
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: Control Arm Questions I don't know of any holes in a control arm with threads in them. What part are you concerned with? Jimmy __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic

03-10-2015, 06:45 AM	#3
TKulak Registered User Join Date: Nov 2014 Location: Perry, OK Posts: 21	Re: Control Arm Questions The ends on both the upper and lower control arms. The shaft that goes through the bottom of the control arms is the threaded on the end. The cap that screws on the end of this that has the grease zerk is threaded on both the inside and outside. It screws into the shaft and then looks like it was threaded on the outside to screw into the control arm. These threads are damaged/non existent. I am concerned about this.

03-10-2015, 12:22 PM	#4
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: Control Arm Questions They are just rings made into the OD of the bushing. If they are worn you need to replace the shafts. They do not thread into the arms. Jimmy __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic

03-10-2015, 12:35 PM	#5
TKulak Registered User Join Date: Nov 2014 Location: Perry, OK Posts: 21	Re: Control Arm Questions Ok that is what I needed to know. So only the shaft and the inside of the cap are threaded? It appeared that the outside of the cap was threaded as well. The shaft threads and the inner cap threads are in good shape.

03-10-2015, 01:54 PM	#7
TKulak Registered User Join Date: Nov 2014 Location: Perry, OK Posts: 21	Re: Control Arm Questions Thank you for the information!



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