Lowered front end alignment question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

doiton3 · 02-29-2012, 12:12 AM

1968 C10 SWB
3" drop springs in front
4" drop springs in back
Rest of suspension stock and tight.
Talked to a local (non-chain) alignment shop today and he seemed to know his stuff related to these older trucks, but he said he might need to put longer front upper A arm bolts in to get the caster around 3.5deg.

Anyone heard of installing a longer bolt?
For some reason it makes me nervous.

BMERDOC · 02-29-2012, 12:22 AM

I dont think I'd install the longer bolt to add more shims. Allow me to plug my Alignment thread (bottom of my post). Chevyrestoguy did a nice write up on what is argueably the best way to gain more caster. Robnolimit has some great info in his "Make it Handle" thread too.

http://67-72chevytrucks.com/vboard/s...d.php?t=501241

http://67-72chevytrucks.com/vboard/s...d.php?t=419251

KQQL IT · 02-29-2012, 02:07 AM

Longer bolts will work. 4" grade 8. 1/2"
Moving the control arms work also.
Posted via Mobile Device

doiton3 · 02-29-2012, 08:40 PM

Thanks BMERDOC, I has surfed for 2 days and found the Robnolimit thread but not yours, great info.

I am definitely leaning towards moving the lower arm forward 1/2 to 3/4 inch when the weather warms up.

02-29-2012, 12:12 AM	#1
doiton3 Registered User Join Date: Aug 2009 Location: Auburn, WA Posts: 10	Lowered front end alignment question 1968 C10 SWB 3" drop springs in front 4" drop springs in back Rest of suspension stock and tight. Talked to a local (non-chain) alignment shop today and he seemed to know his stuff related to these older trucks, but he said he might need to put longer front upper A arm bolts in to get the caster around 3.5deg. Anyone heard of installing a longer bolt? For some reason it makes me nervous.

02-29-2012, 12:22 AM	#2
BMERDOC Registered User Join Date: Jun 2011 Location: Richmond,Va Posts: 2,934	Re: Lowered front end alignment question I dont think I'd install the longer bolt to add more shims. Allow me to plug my Alignment thread (bottom of my post). Chevyrestoguy did a nice write up on what is argueably the best way to gain more caster. Robnolimit has some great info in his "Make it Handle" thread too. http://67-72chevytrucks.com/vboard/s...d.php?t=501241 http://67-72chevytrucks.com/vboard/s...d.php?t=419251 __________________ Nick Carter 1967 C10 Short bed Fleetside Project Cheap Thrills! 2WD C10 Modern/Performance Alignments Easiest Alignment Ever!

02-29-2012, 02:07 AM	#3
KQQL IT At the body shop. Join Date: Aug 2009 Location: Land of fruits and nuts. Posts: 5,254	Re: Lowered front end alignment question Longer bolts will work. 4" grade 8. 1/2" Moving the control arms work also. Posted via Mobile Device __________________ " That didnt make it any newer " " Dont antique the equipment "

02-29-2012, 08:40 PM	#4
doiton3 Registered User Join Date: Aug 2009 Location: Auburn, WA Posts: 10	Re: Lowered front end alignment question Thanks BMERDOC, I has surfed for 2 days and found the Robnolimit thread but not yours, great info. I am definitely leaning towards moving the lower arm forward 1/2 to 3/4 inch when the weather warms up.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.