Another 4 link question- Diagonal track bar
#3024737
03/17/22 12:01 AM
03/17/22 12:01 AM
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Joined: Oct 2006
Posts: 1,264 New York, USA
Chargerfan68
OP
pro stock
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OP
pro stock
Joined: Oct 2006
Posts: 1,264
New York, USA
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Question is: when you adjust the 4 link bars either up/down in front or rear bracket, does that require you to readjust the diagonal track bar to keep the rear exactly in position side to side? In studying the geometry of my 4 link, moving the arms up or down should slightly change the exact position of the diag bar/rear axle location pulling or pushing the rear sideways. Is it so slight that nobody readjusts for it, or am I wrong?
Thx
Last edited by Chargerfan68; 03/17/22 02:20 PM.
1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
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Re: Another 4 link question- Panhard bar
[Re: dvw]
#3024782
03/17/22 08:43 AM
03/17/22 08:43 AM
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Joined: Oct 2006
Posts: 1,264 New York, USA
Chargerfan68
OP
pro stock
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OP
pro stock
Joined: Oct 2006
Posts: 1,264
New York, USA
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Yes…a diagonal track bar. So, after each IC or preload adjustment, you have to readjust the track bat for axle lateral position? Seems like alot of additional work for each adjustmant. Really didn’t want housing location to change with each 4 link adjustment. Do you all actually readjust diagonal bar after adjusting 4 links, or you just let it be.?
Thank you
1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
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Re: Another 4 link question- Panhard bar
[Re: Chargerfan68]
#3024811
03/17/22 10:39 AM
03/17/22 10:39 AM
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Joined: Jan 2003
Posts: 1,611 westerly, ri. usa
440lebaron
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,611
westerly, ri. usa
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I have adjusted right lower bar several times never touched diagonal parnard
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Re: Another 4 link question- Panhard bar
[Re: 440lebaron]
#3024850
03/17/22 12:32 PM
03/17/22 12:32 PM
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Joined: Dec 2006
Posts: 2,118 Byron, NY
W.I.N. Racing
top fuel
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top fuel
Joined: Dec 2006
Posts: 2,118
Byron, NY
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Lets be clear - A Panhard bar runs from the frame to the rear axle assembly parallel to the axel assembly - requires no adjustment with four link adjustment - A Diagonal link runs diagonally from front to rear Diagonally from one side to the other and horizontally parallel to the lower suspension members - depending on how its installed should not require adjustment unless you are changing lower bar length (wheel base length change) - A Wish bone is a three point lateral control that can be either mounted above or below the axle and with the single point forward or reward. A slip joint on the single point allows for the arc of suspension travel and any pinion angle change - does not require adjustment with four link adjustments.
'01 P1500, Blown/Inj BAE,/Veney ,Bruno/CS2,Dana 60 '01 Dodge 3500 S Cummins Auto, Fresh air kit, 4" Exhaust, '05 Dodge Magnum R/T - Too Much to list '60 Willys CJ5 '01 International LPX - Project,DT466, Allison '64 Plymouth Valiant, Inj 528 Hemi, 2spd
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Re: Another 4 link question- Panhard bar
[Re: W.I.N. Racing]
#3024870
03/17/22 01:32 PM
03/17/22 01:32 PM
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Joined: Dec 2005
Posts: 11,668 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,668
Fulton County, PA
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If you don't touch the bottom bars, the diagonal doesn't need to be fooled with. You can twist the top bars anyway you want. The housing will remain centered and square.
Easy way is measure the driveshaft side to side at ride height to the rear driveshaft loop or 4 link brackets. Make your moves, confirm or correct side to side back to those dimensions. Eliminates having to drop string lines, etc.
Making a change on the bottom bars location? Don't loosen the jams. If the housing was square before, it won't change unless your brackets were installed by a blind man.
Last edited by CMcAllister; 03/17/22 01:33 PM.
If the results don't match the theory, change the theory.
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Re: Another 4 link question- Panhard bar
[Re: Chargerfan68]
#3024872
03/17/22 01:41 PM
03/17/22 01:41 PM
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Joined: May 2006
Posts: 740 WA
JD Dart
super stock
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super stock
Joined: May 2006
Posts: 740
WA
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I readjust it not that hard to get the axle housing back to center.
best so far 8.53 @ 158.59 MPH 60'1.240
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