stock vs adjustable panhard - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sactoC10 · 10-23-2003, 10:17 AM

It seems that the catalogues indicate that drops over 5" require replacement of the stock bar with an aftermarket adjustable one, correct?

I've also heard of and read about people who can visually see the rear of the truck moved over 1-2" before replacing the bar. Mine is down about 4" right now and there is no evidence of any shift.

So what really determines if it needs to be changed?

*72longbed* · 10-23-2003, 10:47 AM

Sacto,
I just went through this with my C-20. IMO what dictates the need for an adjustable bar would be the position of the rear axle at final ride height. If you find that the rear is off center when the truck is at rest, then you may want to correct this by installing an adjustable panhard bar. Each truck will be different at rest because of suspension modifications, but one thing is for sure, as the rear axle goes through it's normal up and down travel the amount of left to right movement is magnified. Therefore I feel that having the axle centered at normal ride level is optimum.

Just my opinion.

72

Physh1 · 10-23-2003, 01:27 PM

I'm not too familiar w/ your body style trucks but any panhard bar need to be ideally horizontal to the ground at ride height to minimize axle shift. If you bar is not level you would be best to change it as the more it is off the worse the shift the axle goes through during suspension travel.

Cameron

10-23-2003, 10:17 AM	#1
sactoC10 71 DELUX Join Date: Sep 2003 Location: Northern CA / Sac Posts: 1,055	stock vs adjustable panhard It seems that the catalogues indicate that drops over 5" require replacement of the stock bar with an aftermarket adjustable one, correct? I've also heard of and read about people who can visually see the rear of the truck moved over 1-2" before replacing the bar. Mine is down about 4" right now and there is no evidence of any shift. So what really determines if it needs to be changed? __________________ 5/4 drop LWB wood bed - 15x8 front 235/60 - 15x10 rear 295/50 2003 FORD Escape 1998 Honda VTR1000

10-23-2003, 01:27 PM	#3
Physh1 Registered User Join Date: Aug 2003 Location: Davis, OK Posts: 66	I'm not too familiar w/ your body style trucks but any panhard bar need to be ideally horizontal to the ground at ride height to minimize axle shift. If you bar is not level you would be best to change it as the more it is off the worse the shift the axle goes through during suspension travel. Cameron __________________ Please visit http://www.WhosNextRacing.com & http://www.FSCustoms.com 2000 Chevy Crew Cab Dually, 1994 Chevy ECSB 4x4, & 1983 GMC Sierra Classic

10-23-2003, 10:47 AM	#2
72longbed Account Suspended Join Date: Jun 2003 Location: PA Posts: 1,411	Sacto, I just went through this with my C-20. IMO what dictates the need for an adjustable bar would be the position of the rear axle at final ride height. If you find that the rear is off center when the truck is at rest, then you may want to correct this by installing an adjustable panhard bar. Each truck will be different at rest because of suspension modifications, but one thing is for sure, as the rear axle goes through it's normal up and down travel the amount of left to right movement is magnified. Therefore I feel that having the axle centered at normal ride level is optimum. Just my opinion. 72



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