wolfe10
Texas
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C-Leigh Racing wrote:wolfe10 wrote:sssooo wrote:leaf spring need a trak bar the most,they have a lot of sway?
I put them on front and back both have leaf springs.
Not sure I would agree with that statement. While I agree that leaf springs benefit from track bars, air bags have ZERO resistance to lateral/sideways motion between chassis and axles. So air bag suspensions have to have some form of track bar to control lateral movement.
What if you had air bags at the rear end of the springs, instead of the solid spring hangers.
Would two trac bars be needed then or just one mounted to the center of the rear axle.
Neil
Only takes one to stop axle to chassis side to side movement. And, yes many are mounted to the banjo housing.
Brett Wolfe
1993 Foretravel 36' U-240
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bill h
coastal reconquista
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On P30s, the ones with fewer leaves benefit the most. The ones with 12 leaves benefit less, and on a tag chassis with 12 leaves, the improvement is slight.
It all boils down to how much slop you have back there to start with.
If possible, a Panhard bar should be full width. It forces less of a geometry change owing to its longer length and less angular displacement during suspension. However, with the limited suspension travel of most RV rear axles, the difference may be mostly theoretical.
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racer99
channahon
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Thanks Bill H sounds like you done your homework on Panhard bars
I ended up with 23" from hole to hole using 3/4 shank heim joints (used Aluminum but will change to steel) with 1/2 bolt-I also looked at each area where I could get the most length but stay horz. with the ground-If you email me at pushtrk99@gmail.com I'll send you pics and will accept any & all suggestions-As the summer goes on I'll try refining it to be lighter but still trying to keep the strength-And the other thing is My/our MH is at 16,000# 31' so it has single axle in the rear with 10 leaves-I tried pushing with my feet to see if I can get any movement and it didn't seem like it moved BUT if it does move 1/8 of an inch at 31' it is probably noticable at the steering wheel-Thanks Rich
pauperspride.blogspot.com
* This post was
edited 02/10/12 07:53am by racer99 *
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Daveinet
il
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racer99 wrote:I tried pushing with my feet to see if I can get any movement and it didn't seem like it moved BUT if it does move 1/8 of an inch at 31' it is probably noticeable at the steering wheel-Thanks Rich
pauperspride.blogspot.com My experience has been that such a technique works much better if there is something stationary right behind the axle to compare to. In my case, the fuel tank is 3 inches behind the rear axle, which gave me a point of reference to see the movement. If your point of reference is a couple of feet away, it gets a lot harder to tell. It would be interesting to unbolt one end of your bar, and tie it up with a string. Push on it with your feet then and see if the bar moves. Of course all this is just curiosity, as no one really cares until you drive it. Then you will know. You need to spend less time on the computer and more time packing your bags and get rolling 
Dave
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racer99
channahon
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Thats the problem with being retired you have more time than money so you spend way to much time om the internet-As the snow falls and I look at the MH I have been looking for my next project-Maybe put a shift kit in Trans-put a drain plug in bottom of trans pan-add trans temp gauge-maybe just change the trans fluid--I am getting ansy with 17 days till vacation-THat will be the trac bars real test-Rich
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racer99
channahon
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I got a good grade on workmanship from couple of my friends but also got some constructive criticism which I except -They and the God of chassis Dick from precision thinks I should add a plate behind the chassis to beef that area up-I wouldn't think there would be much movement since I believe the trac bar will do very little since I have hardly no tail wag except every now & then from a box Semi-What you think ???-Rich
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C-Leigh Racing
Nashville NC
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Racer,
I was thinking about that yesterday, (8/12) while I was under mine replacing those bushings & measuring for the track bar.
That chassis rail is of pretty good thickness to begin with & then just before the rear end area, theres a big double cross member bracing in between the rails & then a smaller one right behind the rear end to hold the rail rigid.
I think it would be hard for a trac bar rod to have enough force to bend that chassis rail. Its not like we are off road truck racing, lord help some of these highways though cause one can sometimes feel like we are, but still, dont think theres enough force.
I've got some 3/4" rods with Heim end on them, picked them up in a scrap yard probably 8~10 years ago & no idea at that time why, except they just looked like something I might need.
You wont believe it, one rod is 23", just right length for if bolting on to the rear end housing & another 32" for like going all the way over to the other side over top of the sway bar mount.
Got 3 more 23" rods & heims, one more 32" rod & heims & 2 big long ones I guess about 40" long, except one of those has an adjuster knob on the end.
I believe these rod came off a knitting loom or from a loom out of a cotton mill.
Neil
* This post was
edited 02/12/12 10:13am by C-Leigh Racing *
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racer99
channahon
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We are leaving in couple weeks for Fl-I took numerous measurments to see if there is any movement-I assume since the panhard bar was installed in a relaxed position when I get on the road I can crawl under her and see if it is staying loose or going into a bind and that should tell me if there is a great amount of movement-- I got a old shock that I want to mount parrelell with the ground and put a ty strap on it to see if it moves also--Why go through all this if it works ??? thats me always looking at stuff--I noticed you's ATV-We are taking two Atv's on this trip to Fl hopefully to ride OCALA Natl. forest-I am still checking on other trails down there--We are in our mid 60's so we like easy casual riding--If you email me I'll forward pics of my Trac Bar maybe it will give you an idea--pushtrk99@gmail.com----Rich
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Carstud
Folsom,ca
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I have 2000 rexhall vision 26. I built my rear track bar using a tractor link pin. Found it helped my motorhome. I can only imagine the effects when you get over 30ft. I also installed the front Davis true trac which also made inprovements. I would say if you have the skill build it, it's a cheap upgrade. I also changed from the bilstiens to the koni fsd's which helped smooth out the ride a lot.
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racer99
channahon
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I am not sure what a davis true trac is -I have independant suspension on the front with a stabilizing shock-Is that the same as the davis true trac or is that for leaf spring suspension only-thanks for your input-do you have any pics of the true trac--Rich
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