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Traction bars for leaf spring rear ends. Remember the old slapper bars or tramp rods as I used to call them? Darn things used to hit every thing and get hung up on gutters ........ well not any more with the new style from Kustom Bitz.
Slapper bars custom fit tramp rods

The Kustom Bitz traction bars are designed to go with our leaf spring clamp plates, they have location tabs and are shapped for maximum strength and ground clearance.  We sell them in kits so you can weld them up yourself and tailor them to suit your car as you see fit or you can get us to weld them up once you have done some trial fitting.  They come in two styles, straight and kicked up. The stright ones are for fairly flat springs and the kick up style are for springs with more of a curve, the kick up at the front gives better ground clearance on street driven cars.


The basic idea behind the traction bars is to prevent spring wind up and stop the leaf spring hopping when under hard acceleration.  They will help the car hook up and smack the tyre down for more grip on the road and less tyre spin.  They act similar to ladder bars in principal but not quite as effective as a well installed ladder bar or cal track style traction system, however they are cost effective, easier to install and do not require floor or chassis mods so you can keep the floor pan and spring mounts original.  They work well in cars with mild street engines up to about 350-400hp


And becasue we have made them to suit our wide range of diff hanger brackets you are able to install them in a wide variety of set ups in both wide and narrow spring applications.  The following pictures shows the prototypes I have been running on my XC falcon for some time now. They do sit quite low, in this instance I have 14 inch rims and a 1 3/4 inch lowering block plus the spring clamp bushes, a 15 inch diameter rim would be a better engineered solution in this instance but it gives you an idea how to set them up.




 

 The best thing about slapper bars is being able to give it a boot full without the tyre spin and drawing attention to yourself on the street, I have found they even knock down and eliminate the tyre spin when the shift kit in my c10 slams into second gear.

Finished chromed tramp rod as shown in the picture above and below is our demo example to show you how all the individual parts can be welded up and taylored to suit your individual set up on your vehicle.  This unit is a hamburger with the lot .... to show both styles of shock absorber mounts.  Now this is just our interpretation of how it can be assembled ........... the whole idea of providing a weld up kit is for you to get quality cut pieces of steel that you can assemble as you see fit. 
 



 

So to make up your kit select from the parts listed below.  You will need to decide if you need a straight version or a angled up version. You will need to know the diameter of your diff axle tube and the width or your leaf spring so as you can select the correct clamp plates.  Then you need to study how the shock absorber mounts and select the lower shocker mounting brackets.

If you are not good at welding we can weld it up for you if you get it tacked up and together so it will all fit.  The big thing to note is that all custom cars are slightly different and they are usually super low, with different springs, etc. so ground clearance is always tight, a millimeter here or there can make all the difference to a good out come ......... which is why we do not offer standard welded up versions.

However if you are local to Croydon and you want to bring the car in we can have a look, take some measurments and weld a pair up for you. POA.

Note all welding and fitting work is at extra cost at our standard work shop hourly rates.


Sub Categories
How to weld up a Kustom Bitz Tramp Rod flat pack
How to weld up a Kustom Bitz Tramp Rod flat pack








Tramp Rods Slapper Bars Traction Bar

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Leaf Spring Diff hanger
Weld on diff hanger brackets - suits narrow spings, Ford Customlines, early Holdens etc. Picture shows actual bracket.
$54.00
Leaf Spring Diff hanger
Weld on diff hanger brackets - suits narrow spings, Ford Customlines, early Holdens etc. Picture shows actual bracket.
$54.00
Leaf Spring Diff hanger
Weld on diff hanger brackets - suits narrow spings, Ford Customlines, early Holdens etc. Picture shows actual bracket.
$54.00
Leaf Spring Diff hanger
Weld on diff hanger brackets - suits narrow spings, Ford Customlines, early Holdens etc. Picture shows actual bracket.
$54.00
Leaf Spring Diff hanger
Weld on diff hanger brackets - suits wide spings, Ford Falcons XR,XT,XW,XY,XA,AB,XC,XD,XE. Picture shows actual bracket.
$54.00
Leaf Spring Diff hanger
Weld on diff hanger brackets - suits wide spings, Ford Falcons XR,XT,XW,XY,XA,AB,XC,XD,XE. Picture shows actual bracket.
$54.00
Leaf Spring Diff hanger
Weld on diff hanger brackets - suits wide spings, Ford Falcons XR,XT,XW,XY,XA,AB,XC,XD,XE. Picture shows actual bracket.
$54.00
Leaf Spring Diff hanger
Weld on diff hanger brackets - suits wide spings, Ford Falcons XR,XT,XW,XY,XA,AB,XC,XD,XE. Picture shows actual bracket.
$54.00
Leaf Spring Diff Lower Clamp Plate - Holes suit Diff tube diameter of 64mm & a Spring width of 54mm
Clamp plate that allows the U botls to clamp the leaf spring to the differantial - suits narrow spings, Ford Customlines, early Holdens etc. Picture shows actual...
$54.00
Leaf Spring Diff Lower Clamp Plate - Holes suit Diff tube diameter of 71mm & a Spring width of 54mm
Clamp plate that allows the U botls to clamp the leaf spring to the differantial - suits narrow spings, Ford Customlines, early Holdens etc. Picture shows actual...
$54.00
Leaf Spring Diff Lower Clamp Plate - Holes suit Diff tube diameter of 76mm & a Spring width of 54mm
Clamp plate that allows the U botls to clamp the leaf spring to the differantial - suits narrow spings, Ford Customlines, early Holdens etc. Picture shows actual...
$54.00
Leaf Spring Diff Lower Clamp Plate - Holes suit Diff tube diameter of 84mm & a Spring width of 54mm
Clamp plate that allows the U botls to clamp the leaf spring to the differantial - suits narrow spings, Ford Customlines, early Holdens etc. Picture shows actual...
$54.00
Leaf Spring Diff Lower Clamp Plate - Holes suit Diff tube diameter of 64mm & a Spring width of 64mm
Clamp plate that allows the U botls to clamp the leaf spring to the differantial - suits wide spings, Ford Falcons XR,XT,XW,XY,XA,AB,XC,XD,XE. Picture shows actual...
$54.00
Leaf Spring Diff Lower Clamp Plate - Holes suit Diff tube diameter of 71mm & a Spring width of 64mm
Clamp plate that allows the U botls to clamp the leaf spring to the differantial - suits wide spings, Ford Falcons XR,XT,XW,XY,XA,AB,XC,XD,XE. Picture shows actual...
$54.00
Leaf Spring Diff Lower Clamp Plate - Holes suit Diff tube diameter of 76mm & a Spring width of 64mm
Clamp plate that allows the U botls to clamp the leaf spring to the differantial - suits wide spings, Ford Falcons XR,XT,XW,XY,XA,AB,XC,XD,XE. Picture shows actual...
$54.00
Leaf Spring Diff Lower Clamp Plate - Holes suit Diff tube diameter of 84mm & a Spring width of 64mm
Clamp plate that allows the U botls to clamp the leaf spring to the differantial - suits wide spings, Ford Falcons XR,XT,XW,XY,XA,AB,XC,XD,XE. Picture shows actual...
$54.00
Lowering blocks for Leaf Spring Diff hanger
Weld on lowering blocks to suit our diff brackets - suits narrow spings. Picture shows actual bracket.
$52.00
Lowering blocks for Leaf Spring Diff hanger
Weld on lowering blocks to suit our diff brackets - suits wide spings. Picture shows actual bracket.
$52.00
Lower Shocker mount Ford Style Leaf springs - Weld on style corner angled plate adjustable M20 hole
Weld on lower shock absorber mounts suits pin style shockers. Picture shows actual bracket.
$20.00
Lower Shocker mount EYE Style for Leaf springs - Weld on style flat plate adjustable
Weld on lower shock absorber mounts suits BOLT style shockers with EYE. Picture shows actual bracket.
$18.00
Lower Shocker mount EYE Style for Leaf springs - Weld on style flat plate adjustable RESESSED
Weld on lower shock absorber mounts suits BOLT style shockers with EYE. Picture shows actual bracket.
$18.00
A Tramp Rods Traction Bar - Top Plate forward facing Straight version - for the weld up kit
Slapper bar component - Top forward facing plate 8mm thick suits the straight style KustomBitz tramp rod
$74.00
A Tramp Rods Traction Bar - Top Plate forward facing ANGLED UP version - for the weld up kit
Slapper bar component - Top forward facing plate 8mm thick suits the bent angled up style KustomBitz tramp rod
$74.00
A Tramp Rods Traction Bar - Bottom Plate forward facing Straight version - for the weld up kit
Slapper bar component - Bottom forward facing plate 8mm thick suits the straight style KustomBitz tramp rod
$49.00
A Tramp Rods Traction Bar - Bottom Plate forward facing ANGLED UP version - for the weld up kit
Slapper bar component - Bottom forward facing plate 8mm thick suits the bent angled up style KustomBitz tramp rod
$52.00


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    LS Engine swap and custom air bag IFS

    by kustombitz on 19 Feb 2020
    '67 Toyota Crown ute chassis build is going well. Got the LS engine and 6 speed manual box in place and we can use all the orginal serpentine pulleys, brackets etc. The narrow wheel track on the Toyota called for a tailored solution when it came to the front end.  These old Toyotas dont have service parts available any more so the front end had to be changed, so that made a brake upgrade alot easier too. We run R6 air bags from Air Ride sitting at a ride height of 6" for the air bag so got plenty of air volume in them for a good ride quality and a full length travel shock absorber so we get proper rebound tuning, along with a power steering rack.  So at the sill [belly of the car] we get a 5" ride hieght with a 4 inch drop, this thing will look great.

    Double shear brackets - rear coil overs Hot Rod Chassis

    by kustombitz on 30 May 2019
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    Diff bump stops custom made

    by kustombitz on 08 Mar 2019
    So many hot rod shops don't install proper bump stops.  In this instance we had to rebuild the shocker mounts on the diff as the rear end was bottoming out on the shocker travel becasue it had no properly designed bump stops in place. So the shock absorber mounting bracket was absorbing every bump when the suspension bottomed out, easy to see why both mounts broke. While we were repairing the diff I made a simple yet effective progressive bump stop that is held in place via the U bolts that hold the diff to the leaf springs. It turned out a very successful set up. This is yet another example how Kustom Bitz can sort out problems on your custom car or hot rod, its what we do.

    Torana A9X custom made rear pan hard bar 9" Diff

    by kustombitz on 08 Mar 2019
    Back in the day Group C racing one of the tricks to get the Holden Torana to handle nice and be more predictable in corners was to fit a rear pan hard bar to give much better diff locating than the OEM triangulated 4 bars offered.  However the body, subframe and floor pan at the rear is no where near strong enoungh to concentrate the loads of pan hard bar in any one spot, so it has to be carefully planned and constructed, especially so in a street car like this that we cannot put a full roll cage in. You see in a race car I can place the roll cage in a position to pick up such loads placed on the pan hard bar brackets, but in this situaton we couldn't. The picture above is with the unit installed, keep in mind the car was just a shell so no weight was in it and the rear is sitting high. Once the full wieght of the car is on, it will sit fairly level.  It retains the original triangulated 4 bars however we run PU bushes in the bottom arms and ordinary rubber in the top arms. So the lower arms and pan hard bar do the locating and the top arms have some give so they don't bind with the pan hard bar.

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    by kustombitz on 04 Dec 2018
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    Our first wheels up Launch in Vintage Gas drag racing

    by kustombitz on 27 Aug 2018
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    by kustombitz on 14 Aug 2018
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    Swan Hill Dragway in country VIC

    by kustombitz on 01 Jun 2018
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    34 Ford Hot Rod Chassis with Winters Quickchange rear end

    by kustombitz on 27 Mar 2018
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    by kustombitz on 27 Mar 2018
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