front suspension question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jr1966 · 03-01-2016, 03:08 PM

I am still working on this 69 GMC and have a problem, I think. I put the floor jack under the middle of the front crossmember and jack. As it comes up enough to try and clear the tires the right wheel stays pointed straight and the left starts toeing in like in a right turn and stays that way while up. The front is a later model with power steering and disc brakes and all new other pieces, A arms ,tie rods , idler arm.
Now is this normal or do I have something wrong ? I am new to this truck stuff.
Thanks, JR

**PGSigns** · 03-01-2016, 09:26 PM

As the wheels drop the tie rods also drop and will cause toe in. Most the time its no to extreme.
Jimmy

jr1966 · 03-15-2016, 02:03 PM

Also when sitting still and turn the wheel the front end dips up and down with wheel movement right and left. Kinda weird to be sitting and it move up and down. I can't see anything wrong with the suspension,
Any ideas?

Thanks JR

chase@ridetech · 03-17-2016, 08:59 AM

Quote:

Originally Posted by jr1966

Also when sitting still and turn the wheel the front end dips up and down with wheel movement right and left. Kinda weird to be sitting and it move up and down. I can't see anything wrong with the suspension,
Any ideas?

Thanks JR

What is your caster set at? The king pin inclination will cause the movement up and down as it goes side to side. The more caster typically the more movement.

**PGSigns** · 03-15-2016, 08:08 PM

Post pictures that sounds like something is bent.
Jimmy

chase@ridetech · 03-17-2016, 09:06 AM

Quote:

Originally Posted by jr1966

I am still working on this 69 GMC and have a problem, I think. I put the floor jack under the middle of the front crossmember and jack. As it comes up enough to try and clear the tires the right wheel stays pointed straight and the left starts toeing in like in a right turn and stays that way while up. The front is a later model with power steering and disc brakes and all new other pieces, A arms ,tie rods , idler arm.
Now is this normal or do I have something wrong ? I am new to this truck stuff.
Thanks, JR

Measure your tie rods center to center for both sides. Also, with the steering wheel centered, count the number of turns that you make make to the left and then front center count the number of turns you can make to the right. If the steering wheel was ever put on "off center" and then centered by adjusting the tie rod ends it could create this issue.

**robnolimit** · 03-17-2016, 09:10 AM

check the condition of the Idler Arm.

jr1966 · 03-17-2016, 12:08 PM

I am going to try to get a few pics. All parts are new and later model than 69. haven't even got it dirty yet. Seems to drive OK. I have to figure out how to post pics next.
Thanks JR

03-01-2016, 03:08 PM	#1
jr1966 Registered User Join Date: Jun 2015 Location: Cottontown,Tn. Posts: 65	front suspension question I am still working on this 69 GMC and have a problem, I think. I put the floor jack under the middle of the front crossmember and jack. As it comes up enough to try and clear the tires the right wheel stays pointed straight and the left starts toeing in like in a right turn and stays that way while up. The front is a later model with power steering and disc brakes and all new other pieces, A arms ,tie rods , idler arm. Now is this normal or do I have something wrong ? I am new to this truck stuff. Thanks, JR

03-01-2016, 09:26 PM	#2
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: front suspension question As the wheels drop the tie rods also drop and will cause toe in. Most the time its no to extreme. 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

03-15-2016, 02:03 PM	#3
jr1966 Registered User Join Date: Jun 2015 Location: Cottontown,Tn. Posts: 65	Re: front suspension question Also when sitting still and turn the wheel the front end dips up and down with wheel movement right and left. Kinda weird to be sitting and it move up and down. I can't see anything wrong with the suspension, Any ideas? Thanks JR

03-15-2016, 08:08 PM	#5
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: front suspension question Post pictures that sounds like something is bent. 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

03-17-2016, 09:10 AM	#7
robnolimit Senior Member Join Date: Jul 2010 Location: Dandridge, Tn. USA Posts: 2,226	Re: front suspension question check the condition of the Idler Arm. __________________ GoodGuys 2012 Pro-Truck Champion 2012 Truckin' Throwdown Champion GoodGuys 2011 National Champion 2011 Truckin' Throwdown Champion GoodGuys 2010 National Champion Proud to put our products up against all others!

03-17-2016, 12:08 PM	#8
jr1966 Registered User Join Date: Jun 2015 Location: Cottontown,Tn. Posts: 65	Re: front suspension question I am going to try to get a few pics. All parts are new and later model than 69. haven't even got it dirty yet. Seems to drive OK. I have to figure out how to post pics next. Thanks JR



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