spc performance upper control arms - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dunhamj · 02-14-2016, 04:32 PM

Any one running this control arm on c10. The muscle car guys are love them. I want to see if anyone had any input. im looking at getting a set. They will fix all the bump steer and caster issue.

SCOTI · 02-14-2016, 07:43 PM

Caster possibly but how are they supposed to help bumpsteer?

dunhamj · 02-14-2016, 09:19 PM

caster and camber from their web site

SCOTI · 02-15-2016, 03:56 AM

Quote:

Originally Posted by dunhamj

caster and camber from their web site

In a car, yes. The truck set-ups would be different. Do they now make them for the C10 applications? (I have the SPC upper arms/Stage-2 set-up for a G-body).

dunhamj · 02-15-2016, 02:54 PM

they don't show it but they do you have to call them and talk to the application guys in the back office. you have to order it in a cpl of pieces. cross shaft is #93400 which is a 5" mounting hole which is what mine measured out to. You will also need #92021 which is all the hardware for one with delrim bushings. ball joint plate is a 94004 for gm truck which is the bolt in one, that the same one you can get for the 1' tall ball joint too. then its math. we both did that and we can up with need a 5" adjuster for the rear and a 6" adjuster for the front which is 92050 and 92060.

SCOTI · 02-15-2016, 05:13 PM

I got approx 7° caster w/stock upper truck arms & shifting the lower BJ forward. I guess the SPC arms would work too.

dunhamj · 02-15-2016, 07:46 PM

how did you shift it forward. are you on springs or air ride.

SCOTI · 02-15-2016, 11:56 PM

I originally re-drilled the locating divot on the lower shaft to push the lower arms forward .750". The I went to bags but the pockets I made in the lower arms were too close for comfort. So I purchased a set of Porterbuilt 1" forward Lower arms to speed the process.

dunhamj · 02-16-2016, 03:27 AM

so do you have stock upper arms. if so can you send me a pic of your ride height and then one with the air out.

SCOTI · 02-16-2016, 03:01 PM

Quote:

Originally Posted by dunhamj

so do you have stock upper arms. if so can you send me a pic of your ride height and then one with the air out.

They're on my build thread in the 73-87/builds sub-forum (my 89 CC project double wide).

02-14-2016, 04:32 PM	#1
dunhamj Registered User Join Date: Apr 2013 Location: rochester, washington Posts: 24	spc performance upper control arms Any one running this control arm on c10. The muscle car guys are love them. I want to see if anyone had any input. im looking at getting a set. They will fix all the bump steer and caster issue. Attached Images

02-14-2016, 07:43 PM	#2
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,068	Re: spc performance upper control arms Caster possibly but how are they supposed to help bumpsteer? __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

02-14-2016, 09:19 PM	#3
dunhamj Registered User Join Date: Apr 2013 Location: rochester, washington Posts: 24	Re: spc performance upper control arms caster and camber from their web site

02-15-2016, 02:54 PM	#5
dunhamj Registered User Join Date: Apr 2013 Location: rochester, washington Posts: 24	Re: spc performance upper control arms they don't show it but they do you have to call them and talk to the application guys in the back office. you have to order it in a cpl of pieces. cross shaft is #93400 which is a 5" mounting hole which is what mine measured out to. You will also need #92021 which is all the hardware for one with delrim bushings. ball joint plate is a 94004 for gm truck which is the bolt in one, that the same one you can get for the 1' tall ball joint too. then its math. we both did that and we can up with need a 5" adjuster for the rear and a 6" adjuster for the front which is 92050 and 92060.

02-15-2016, 05:13 PM	#6
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,068	Re: spc performance upper control arms I got approx 7° caster w/stock upper truck arms & shifting the lower BJ forward. I guess the SPC arms would work too. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

02-15-2016, 07:46 PM	#7
dunhamj Registered User Join Date: Apr 2013 Location: rochester, washington Posts: 24	Re: spc performance upper control arms how did you shift it forward. are you on springs or air ride.

02-15-2016, 11:56 PM	#8
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,068	Re: spc performance upper control arms I originally re-drilled the locating divot on the lower shaft to push the lower arms forward .750". The I went to bags but the pockets I made in the lower arms were too close for comfort. So I purchased a set of Porterbuilt 1" forward Lower arms to speed the process. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

02-16-2016, 03:27 AM	#9
dunhamj Registered User Join Date: Apr 2013 Location: rochester, washington Posts: 24	Re: spc performance upper control arms so do you have stock upper arms. if so can you send me a pic of your ride height and then one with the air out.

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