pan hard bar question about lowering truck - The 1947 - Present Chevrolet & GMC Truck Message Board Network

modifiedGMC · 05-29-2005, 11:41 AM

Does the panhard bar have to be made adjustable when you drop the rear? I was using a cable hoist ran under the rear end and connected to the frame above it to pull the truck down to get an idea of the drop I want. It would only go about 2" and stopped but the snubbers were NOT bottomed out, so I figured the panhard bar was stopping it. any ideas?
Could the rear coils be cut and then bend the end back into the curl for mounting?

XXL · 05-29-2005, 01:37 PM

Quote:

Originally Posted by modifiedGMC

Does the panhard bar have to be made adjustable when you drop the rear?

No. Adjustable just lets you "tune" the length. Once you adjust it, you never need to again.

neonlarry · 05-29-2005, 02:38 PM

^But as you lower the rear it shifts to one side, thats why they made the adjustable bars so you can recenter your rear. With 2-3" you can probably get by without an adjustable bar but any more than that and you start affecting tracking and u-joint and carrier bearing wear.
On the springs how would you recurl them? if you heat them they are DOA.

XXL · 05-29-2005, 04:33 PM

Quote:

Originally Posted by neonlarry

^But as you lower the rear it shifts to one side, thats why they made the adjustable bars so you can recenter your rear.

As I said, once you are recentered, you don't need it to adjust any more. "Adjustable" sounds as if it indicates some kind of ongoing thing. It's not.

boraxman · 06-01-2005, 06:00 PM

Im running a stock bar on a 5" rear coil drop and it seems fine, course it might look different if I was looking at it going down the road.

neonlarry · 06-01-2005, 07:37 PM

Easy way to check measure opposite frame rail to backing plate flange for both side and see if they are the same.

modifiedGMC · 06-02-2005, 05:37 AM

Maybe I should have not used the word "adjustable", I should have said does it have to be shortened? See the problem I'm having is when I started to drop the truck down it stopped before it got to the point I wanted. I didn't know if the panhard bar was stopping it or the drive shaft not letting it go down, but something stopped it from going down. Like I said before the rubber stoppers on the rearend still had space between them and the frame and I didn't see anything but the panhard bar and/or drive shaft that could be stopping it.

smokekiki · 06-02-2005, 08:23 AM

Your springs are pretty stiff.I think that is the problem You are having.The panhard keeps the rear centered.The only way it would limit the suspension is if the wheel and tire are pressing against the body!

05-29-2005, 11:41 AM	#1
modifiedGMC Registered User Join Date: Oct 2004 Location: Walker Co. Alabama Posts: 474	pan hard bar question about lowering truck Does the panhard bar have to be made adjustable when you drop the rear? I was using a cable hoist ran under the rear end and connected to the frame above it to pull the truck down to get an idea of the drop I want. It would only go about 2" and stopped but the snubbers were NOT bottomed out, so I figured the panhard bar was stopping it. any ideas? Could the rear coils be cut and then bend the end back into the curl for mounting? __________________ If it don't fit, force it,...If it still don't fit , modify it 'till it does fit !!!

05-29-2005, 02:38 PM	#3
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,745	^But as you lower the rear it shifts to one side, thats why they made the adjustable bars so you can recenter your rear. With 2-3" you can probably get by without an adjustable bar but any more than that and you start affecting tracking and u-joint and carrier bearing wear. On the springs how would you recurl them? if you heat them they are DOA. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

06-01-2005, 06:00 PM	#5
boraxman Keepin an eye out Join Date: Feb 2003 Location: So.Cal Posts: 3,920	Im running a stock bar on a 5" rear coil drop and it seems fine, course it might look different if I was looking at it going down the road. __________________ 1970 Chevy C10 SWB 5.3 1996 Toyota Tacoma SR5 4x4 2007 Vespa GTS 250 Scooter ZIP 91351

06-01-2005, 07:37 PM	#6
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,745	Easy way to check measure opposite frame rail to backing plate flange for both side and see if they are the same. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

06-02-2005, 05:37 AM	#7
modifiedGMC Registered User Join Date: Oct 2004 Location: Walker Co. Alabama Posts: 474	Maybe I should have not used the word "adjustable", I should have said does it have to be shortened? See the problem I'm having is when I started to drop the truck down it stopped before it got to the point I wanted. I didn't know if the panhard bar was stopping it or the drive shaft not letting it go down, but something stopped it from going down. Like I said before the rubber stoppers on the rearend still had space between them and the frame and I didn't see anything but the panhard bar and/or drive shaft that could be stopping it. __________________ If it don't fit, force it,...If it still don't fit , modify it 'till it does fit !!! Last edited by modifiedGMC; 06-02-2005 at 05:36 PM.

06-02-2005, 08:23 AM	#8
smokekiki Mike Join Date: Jan 2003 Location: west chester pa Posts: 2,473	Your springs are pretty stiff.I think that is the problem You are having.The panhard keeps the rear centered.The only way it would limit the suspension is if the wheel and tire are pressing against the body! __________________ 70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires

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