Running a Johnny Joint / Superflex Joint on the Track Bar
#1
Running a Johnny Joint / Superflex Joint on the Track Bar
I'm looking to redo my track bar with one straight piece of 1.5" DOM prolly .25 wall.
Anyway I'm not really thinking I want to run that Heim joint i have up there now. Would it be weaker or would there be any down sides to using a Johnny Joint / Superflex Joint to mount the track bar up on the frame?
here is what I'm thinking about running.
http://www.rubiconexpress.com/Produc...=DB72741238081
Anyway I'm not really thinking I want to run that Heim joint i have up there now. Would it be weaker or would there be any down sides to using a Johnny Joint / Superflex Joint to mount the track bar up on the frame?
here is what I'm thinking about running.
http://www.rubiconexpress.com/Produc...=DB72741238081
#4
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you can get johnny joints in all kinds of sizes if you want.
http://www.currieenterprises.com/ces...nnyjoints.aspx
http://www.currieenterprises.com/ces...nnyjoints.aspx
#8
I think the main problem with them is not related to strength, it's related to durability over time. Since they are open, you have the problem of deterioration due to dirt and moisture.
But they're easy to replace and proper maintenance probably minimizes problems.
The main reasons for bushings and TRE's is durability -- but generally speaking it's at the expense of range of motion.
But they're easy to replace and proper maintenance probably minimizes problems.
The main reasons for bushings and TRE's is durability -- but generally speaking it's at the expense of range of motion.
#10
True that. But any open joint still has the issue in some form. That was my only point.
TRE's are either completely sealed, or fully sealed on one end with grease fittings allowing a continual removal of contaminants generally. But TRE's are applicable to a track bar only with modification of the mountings to take cone-shaped studs.
I think that's why bushings show up so much -- a track bar generally has the least degrees of freedom required of any of the "control" arms in a 3 link like that. Except for limited front-to-back movement due to the arc of the radius arms, they are pretty much only one degree of freedom at each end. They just may not require such exotic pivots to function really, really well, especially with long radius arms that minimize the arc of the suspension travel for the same length of travel.
TRE's are either completely sealed, or fully sealed on one end with grease fittings allowing a continual removal of contaminants generally. But TRE's are applicable to a track bar only with modification of the mountings to take cone-shaped studs.
I think that's why bushings show up so much -- a track bar generally has the least degrees of freedom required of any of the "control" arms in a 3 link like that. Except for limited front-to-back movement due to the arc of the radius arms, they are pretty much only one degree of freedom at each end. They just may not require such exotic pivots to function really, really well, especially with long radius arms that minimize the arc of the suspension travel for the same length of travel.
#11
#15
well you are on the right track of not wanting to use the yota box... I'm not sure i like it too well, but after spending ALOT of money on it I'm just going to stick with it.
steering geometry is something that i have to think about alot just to figure out 'well if i change this what happens sort of thing' lol
steering geometry is something that i have to think about alot just to figure out 'well if i change this what happens sort of thing' lol
#16
#17
Yeah i have 4 joints just like this on for my front suspension. I like them. I will prolly run the same ones in the rear but use the LARGE sized ones not the small. that is a ways down the road though.
I just ordered one and a piece of threaded rod, maybe next weekend I can get started on it. I hope...
I just ordered one and a piece of threaded rod, maybe next weekend I can get started on it. I hope...
#18
They sell them with the threaded rod already welded on. These are the ones I have:
http://suicidedoors.com/SuperPivot4-...th1-18Stud.php
http://suicidedoors.com/SuperPivot4-...th1-18Stud.php
#21
Originally Posted by loranger
They sell them with the threaded rod already welded on. These are the ones I have:
http://suicidedoors.com/SuperPivot4-...th1-18Stud.php
http://suicidedoors.com/SuperPivot4-...th1-18Stud.php
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