Tracking Issue - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dustykey · 05-15-2011, 09:39 AM

My issue is that my truck seems to track all over the road. I really have to "drive" to keep it in the middle of the road. If I go over a ridge or rise in the road, the truck seems to track that way and not really come back to center on its own. I have a 72 SWB with a 2.5/4 drop. Up front I have 2.5 drop spindles with new standard height front springs from LMC. Installed tubular upper and lower control arms from CPP. New steering gear, tie rods, idler and pitman arm. In the rear I have new 4in drop springs, new trailing arm bushings and new shocks. New rear stabilizer bar (frame to diff. housing). I do not have any sway bars on this truck. Would that help solve my problem? I always thought sway bars were for body roll.

gringoloco · 05-15-2011, 11:24 AM

This can be caused by a number of factors including wide tires, caster settings, toe settings, or a combination of these. When did it start doing it? That will help us narrow it down...

Edit: sway bars would likely not fix your issue, but a front isn't a bad idea anyway.

dustykey · 05-15-2011, 01:00 PM

It has done it since everything was installed. I believe the castor and camber are built into the A arms to accomodated drop spindles. I am running 255/60/17 tires. I don't really think they are that wide. I have had this issue on other trucks running wide tires, but I hope this isn't the case here.

gringoloco · 05-16-2011, 12:18 AM

Yes, the CPP tube arms will allow the caster and camber to able to be better set to accommodate the drop as well as newer radial tires, but do not 'automatically' add it simply by bolting them on. They will, however, allow you more adjustability in your alignment specs.

Having zero toe or toe-out would do exactly what you are referring to- you want a little toe-in to keep it from following the grooves. Also negative or neutral caster will have a similar effect. You will want as much positive caster as you can add while still meeting your camber specs.

Have you had the truck aligned since the changes?

dustykey · 05-16-2011, 03:59 PM

The truck was supposedly aligned when I had the wheels & tires installed, but I am skeptical that it was done properly. I will take it to another shop and have it done again. Thanks for the input.

SCOTI · 05-16-2011, 05:46 PM

Quote:

Originally Posted by dustykey

The truck was supposedly aligned when I had the wheels & tires installed, but I am skeptical that it was done properly. I will take it to another shop and have it done again. Thanks for the input.

Did they give you a print-out of the final alignment settings?

dustykey · 05-16-2011, 08:36 PM

No, I was never given a print out of the settings.

cdowns · 05-16-2011, 08:48 PM

sway bars are a great addition to your overall handeling package

05-15-2011, 09:39 AM	#1
dustykey Combat Inkslinger Join Date: Oct 2008 Location: Charleston, SC Posts: 42	Tracking Issue My issue is that my truck seems to track all over the road. I really have to "drive" to keep it in the middle of the road. If I go over a ridge or rise in the road, the truck seems to track that way and not really come back to center on its own. I have a 72 SWB with a 2.5/4 drop. Up front I have 2.5 drop spindles with new standard height front springs from LMC. Installed tubular upper and lower control arms from CPP. New steering gear, tie rods, idler and pitman arm. In the rear I have new 4in drop springs, new trailing arm bushings and new shocks. New rear stabilizer bar (frame to diff. housing). I do not have any sway bars on this truck. Would that help solve my problem? I always thought sway bars were for body roll. __________________ All you gotta do to make this a nice truck is..............

05-15-2011, 11:24 AM	#2
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: Tracking Issue This can be caused by a number of factors including wide tires, caster settings, toe settings, or a combination of these. When did it start doing it? That will help us narrow it down... Edit: sway bars would likely not fix your issue, but a front isn't a bad idea anyway. __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy Last edited by gringoloco; 05-15-2011 at 11:26 AM.

05-15-2011, 01:00 PM	#3
dustykey Combat Inkslinger Join Date: Oct 2008 Location: Charleston, SC Posts: 42	Re: Tracking Issue It has done it since everything was installed. I believe the castor and camber are built into the A arms to accomodated drop spindles. I am running 255/60/17 tires. I don't really think they are that wide. I have had this issue on other trucks running wide tires, but I hope this isn't the case here. __________________ All you gotta do to make this a nice truck is..............

05-16-2011, 12:18 AM	#4
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: Tracking Issue Yes, the CPP tube arms will allow the caster and camber to able to be better set to accommodate the drop as well as newer radial tires, but do not 'automatically' add it simply by bolting them on. They will, however, allow you more adjustability in your alignment specs. Having zero toe or toe-out would do exactly what you are referring to- you want a little toe-in to keep it from following the grooves. Also negative or neutral caster will have a similar effect. You will want as much positive caster as you can add while still meeting your camber specs. Have you had the truck aligned since the changes? __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy Last edited by gringoloco; 05-16-2011 at 09:56 PM.

05-16-2011, 03:59 PM	#5
dustykey Combat Inkslinger Join Date: Oct 2008 Location: Charleston, SC Posts: 42	Re: Tracking Issue The truck was supposedly aligned when I had the wheels & tires installed, but I am skeptical that it was done properly. I will take it to another shop and have it done again. Thanks for the input. __________________ All you gotta do to make this a nice truck is..............

05-16-2011, 08:36 PM	#7
dustykey Combat Inkslinger Join Date: Oct 2008 Location: Charleston, SC Posts: 42	Re: Tracking Issue No, I was never given a print out of the settings. __________________ All you gotta do to make this a nice truck is..............

05-16-2011, 08:48 PM	#8
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Tracking Issue sway bars are a great addition to your overall handeling package __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY



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