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Re: adjustable strut rods
[Re: krautrock]
#2424273
12/27/17 04:39 AM
12/27/17 04:39 AM
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Joined: Dec 2017
Posts: 24 Northern Colorado
EagleDuster
member
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member
Joined: Dec 2017
Posts: 24
Northern Colorado
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Hey guys, sorry to bring back an old thread but this is the second time I've heard of the "binding due to moved pivot point" issue and it has me confused. I have a mechanical engineering background so I understand the tech-speak with suspension stuff to some extent. The thing is I installed adjustable (heim-jointed) strut rods on my '70 Duster and they made a very noticeable improvement in turn-in response and braking feel. When installing them you are supposed to assemble the LCA and strut rod to the K-member without a torsion bar and gradually adjust the strut rod shorter while simultaneously moving the LCA up and down through its full range of motion. On mine I just went till I started to feel it tightening up and barely pulling on the LCA then tightened the lock nuts. It still moved totally smooth through the full range of motion. If that was possible to achieve then where is this "binding" supposed to be happening?
Khalid 1970 Plymouth Duster, 1993 Jeep Cherokee 4x4
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Re: adjustable strut rods
[Re: krautrock]
#2424396
12/27/17 02:56 PM
12/27/17 02:56 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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When you use the strut rod to dial in caster you are doing it wrong. Use the UCA to relocate the UBJ. There are a number of aftermarket tubular ones that are designed to add more than the stock UCA.
When the forward pivot of your strut rod is not in line with the LCA pivot pin, you are doing it wrong. That is a design flaw, pure and simple. Easy to fix in the design stage, if you know what you are doing and not slapping some junk together to sell to the unsuspecting.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: adjustable strut rods
[Re: GoodysGotaCuda]
#2424557
12/27/17 07:26 PM
12/27/17 07:26 PM
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Joined: Jan 2003
Posts: 2,094 central texas
krautrock
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 2,094
central texas
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What is the proper "spec" for adjusting these?
Upon initial install [no t-bar], I adjusted them to where the LCA ran smoothest through it's range of motion. Now that the car has 1,500 miles or so, I am doing an alignment after things have settled and may want to revisit that. that's basically what i did. with no torsion bar in the LCA there is a slight movement in the arm front to rear, i just pushed the arm forward at approximate ride height. adjusted the strut rod to that distance and then gave it an extra turn to lengthen it just a tad. dropped marks on the ground when it was all back together and measured to make sure everything was equal.
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Re: adjustable strut rods
[Re: krautrock]
#2424584
12/27/17 08:08 PM
12/27/17 08:08 PM
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Joined: Dec 2017
Posts: 24 Northern Colorado
EagleDuster
member
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member
Joined: Dec 2017
Posts: 24
Northern Colorado
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Looks like I'll have to plan on doing a design study on the Mopar front lower control arm/strut rod assembly one of these days when I'm really bored, lol
Khalid 1970 Plymouth Duster, 1993 Jeep Cherokee 4x4
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