Truck wanders when driving - The 1947 - Present Chevrolet & GMC Truck Message Board Network

batman09 · 01-09-2018, 09:57 PM

Need a little advice...my newly acquired 1970 c10 wanders left to right when driving....any thoughts on what it could be? Has cpp upper a arms..stock lowers with coil overs
Has agr steering box(new)
https://www.summitracing.com/parts/a...del/c10-pickup
Steering box or alignment is what I was thinking....alignment looks good to the naked eye
Thanks for the help!!

**PGSigns** · 01-10-2018, 07:56 AM

First would be to ensure everything is tight and looks like no worn parts or bushings. I would get it aligned and see what you have. It may look OK but if it has little or no caster it will not track well. I like 3 degrees of caster.
Jimmy

bs46488 · 01-10-2018, 02:29 PM

Subbed as I have similar problems. I'm pretty sure my issue is bumbsteer, followed by a way off alignment.

Can you post pics of your suspension setup? That would help.

batman09 · 01-11-2018, 11:10 PM

Quote:

Originally Posted by bs46488

Subbed as I have similar problems. I'm pretty sure my issue is bumbsteer, followed by a way off alignment.

Can you post pics of your suspension setup? That would help.

Sorry I don't have a lift

Bigd18 · 01-15-2018, 05:03 PM

Toe in can cause a vehicle to wander as well as bumpsteer. Does it happen on rough roads with bumps or anytime, including smooth roads? If the road is flat and smooth then I would go with toe in first.

batman09 · 01-27-2018, 05:09 PM

Quote:

Originally Posted by Bigd18

Toe in can cause a vehicle to wander as well as bumpsteer. Does it happen on rough roads with bumps or anytime, including smooth roads? If the road is flat and smooth then I would go with toe in first.

It happens all the time

**PGSigns** · 01-28-2018, 07:25 PM

First thing to do is to check it over for any worn parts and get that fixed first. Then a good alignment.
Jimmy

batman09 · 01-30-2018, 09:47 PM

Quote:

Originally Posted by PGSigns

First thing to do is to check it over for any worn parts and get that fixed first. Then a good alignment.
Jimmy

Everything tight/new... just had alignment done.. all good ...still twitchy..crazy bumpsterr and wanders... think it's the agr steering box

**PGSigns** · 01-31-2018, 07:31 AM

How much caster did you end up with and did they do a bump steer check?
Jimmy

batman09 · 01-31-2018, 07:33 AM

Quote:

Originally Posted by PGSigns

How much caster did you end up with and did they do a bump steer check?
Jimmy

3.6 positive...never heard of a bump steer check? What is that?

midniteblues · 02-02-2018, 01:54 AM

This issue comes up often on the main page alot.

Check your inner tie rods if the studs are pointing to the rear of the truck then you have a center link thats been flipped backwards.

Its a very easy mistake to make, goes unnoticed by many(even the alignment shops) and will cause exactly the issues your describing.

ryanv70c10 · 02-02-2018, 02:04 AM

Bruce, post a picture of your centerlink. It may be on backwards. If backward it causes what you're describing.

batman09 · 02-02-2018, 09:06 AM

Quote:

Originally Posted by ryanv70c10

Bruce, post a picture of your centerlink. It may be on backwards. If backward it causes what you're describing.

Posted via Mobile Device

**Boog** · 02-02-2018, 11:22 PM

right side up.

**PGSigns** · 02-02-2018, 07:53 AM

What we do on the alignment rack on the drag cars to check bump steer is raise the front slowly and see how bad the tow changes as it goes up. This was used to see if we needed to limit the travel and if so about where. That way when the front went up in the air the wheels would be at least close to straight. If the tie rods are running up hill at ride height on a lowered truck you can get bump steer as the front goes up and the toe begins to point out. So a check on the rack if there is a concern is to raise the front a few inches and see what the change is.
Jimmy

01-09-2018, 09:57 PM	#1
batman09 Registered User Join Date: Dec 2009 Location: Norcal Posts: 13	Truck wanders when driving Need a little advice...my newly acquired 1970 c10 wanders left to right when driving....any thoughts on what it could be? Has cpp upper a arms..stock lowers with coil overs Has agr steering box(new) https://www.summitracing.com/parts/a...del/c10-pickup Steering box or alignment is what I was thinking....alignment looks good to the naked eye Thanks for the help!! __________________ 1970 c10 ls2/4l60e 1967 Nova---LS3/4L70e

01-10-2018, 07:56 AM	#2
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: Truck wanders when driving First would be to ensure everything is tight and looks like no worn parts or bushings. I would get it aligned and see what you have. It may look OK but if it has little or no caster it will not track well. I like 3 degrees of caster. 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

01-10-2018, 02:29 PM	#3
bs46488 Registered User Join Date: May 2014 Location: San Diego, CA Posts: 547	Re: Truck wanders when driving Subbed as I have similar problems. I'm pretty sure my issue is bumbsteer, followed by a way off alignment. Can you post pics of your suspension setup? That would help. __________________ Project Engine Stand 1972 SWB conversion: http://67-72chevytrucks.com/vboard/s...d.php?t=673914 1970 Nova: http://67-72chevytrucks.com/vboard/s...d.php?t=708161

01-15-2018, 05:03 PM	#5
Bigd18 Registered User Join Date: Sep 2017 Location: Callaway Posts: 10	Re: Truck wanders when driving Toe in can cause a vehicle to wander as well as bumpsteer. Does it happen on rough roads with bumps or anytime, including smooth roads? If the road is flat and smooth then I would go with toe in first.

01-28-2018, 07:25 PM	#7
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: Truck wanders when driving First thing to do is to check it over for any worn parts and get that fixed first. Then a good alignment. 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

01-31-2018, 07:31 AM	#9
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: Truck wanders when driving How much caster did you end up with and did they do a bump steer check? 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

02-02-2018, 01:54 AM	#11
midniteblues Registered User Join Date: Jul 2011 Location: strausstown pa Posts: 3,394	Re: Truck wanders when driving This issue comes up often on the main page alot. Check your inner tie rods if the studs are pointing to the rear of the truck then you have a center link thats been flipped backwards. Its a very easy mistake to make, goes unnoticed by many(even the alignment shops) and will cause exactly the issues your describing. __________________ 81 camaro 355 4/spd 342 posi my first love. 67 swb step 454/4spd ott 373 posi 4/7 drop. 2000 s10 zr2 little blue truck that never gets stuck. '74 heald super bronc vt8. tecumseh powered moon rover.

02-02-2018, 02:04 AM	#12
ryanv70c10 Registered User Join Date: Feb 2016 Location: San Mateo Posts: 199	Re: Truck wanders when driving Bruce, post a picture of your centerlink. It may be on backwards. If backward it causes what you're describing.

02-02-2018, 11:22 PM	#14
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,513	Re: Truck wanders when driving right side up. Attached Images __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross

02-02-2018, 07:53 AM	#15
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: Truck wanders when driving What we do on the alignment rack on the drag cars to check bump steer is raise the front slowly and see how bad the tow changes as it goes up. This was used to see if we needed to limit the travel and if so about where. That way when the front went up in the air the wheels would be at least close to straight. If the tie rods are running up hill at ride height on a lowered truck you can get bump steer as the front goes up and the toe begins to point out. So a check on the rack if there is a concern is to raise the front a few inches and see what the change is. 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



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