You may have noticed that ladder bars are permitted in the Street
Outlaw class for 1996. What you may not realize is that a ladder bar kit
is quite easy to install.
First lets talk about what a ladder bar kit consists of. The typical kit
includes two ladder bars (adjustable or non-adjustable), a track
locator, a front ladder bar cross member, and upper shock mount cross
member, two lower shock mount brackets (usually adjustable), and two
coil-over type shocks and springs.
The adjustable type ladder bars (typically about 28" center to center)
have a threaded set-up on the upper part of the ladder tube to allow
minor adjustments to the pinion angle. The lower shock mount brackets
should have several locator holes which permits adjustment of the ride
height of the rear of the car. Usually, the coil-over shocks have a
provision whereby the height or length of the spring (pre-load) can be
adjusted from right to left. This may all sound complicated but compared
to a competition type 4-link, ladder bars are a piece of cake and after
initial set up, usually don't need further adjusting.
Another thing to remember is that a properly designed ladder bar set up
does not require modifications to the stock rear sub rear sub frame.
This is fortunate since the Street Outlaw class does not allow
modifications in this area. No "back half" type modifications allowed to
the stock frame or wheel tubs, other than frame cross members.
We have had numerous people ask us what a ladder bar set-up would do to
increase performance on their 5.0's. Here is what we have found. If you
car is running in the 12's, don't waste your energy on a ladder bar kit.
If, however, you want to decrease your 60 foot times and increase
straight line handling on a mid 10 second or quicker car, a ladder bar
kit may be just the answer. We have one customer who had been running in
the mid 9's with the stock 4-link set-up. Switching to a ladder bar
allowed the car to drop into the 8's and at the same time, increase the
handling capability. Before, when still using the stock 4-link, when the
second stage of his nitrous came in, the car was all over the track.
Now, the car goes straight as a string.
Another prospect for a ladder bar kit is someone who has damaged either
his upper or lower "torque boxes" or stock 4-link attachment points. We
have had several customers damage the lower attachment points using
certain types of "lift bars". And we have had other customers pull the
upper attachment points completely out of the floor. Once these stock
attachment point are damaged, they are almost impossible to repair.
How do we install a ladder bar kit without taking everything in the rear
end apart or using an expensive chassis jig? Here is the easy way:
You need two things. First is someone who knows how to weld. And second,
you need a gas station type car lift. The lift needs to be the type that
you can drive the car on rather than a chassis lift. It is important
that the work is done with your Mustang standing on the tires.
Let's begin. First, decide the location of the ladder bars. They should
be as wide as possible; just inside of the stock frame rails. Next, bolt
the front of the ladder bars onto the front ladder bar cross member.
With the front cross member held up in place by a friend, tack weld the
rear of the ladder bars onto the rear end housing. An 8.8 Ford rear end
will work fine. There is no need to use the 9" Ford housing as long as
you have good parts in the stock rear end.
With the ladder bars tack welded to the rear end housing, weld the front
cross member in place. This will usually be about where the rear of the
sub frame connectors attach. Next, bolt the track locator in place. This
will usually be between the front of the drivers side ladder bar and the
rear of the passenger side ladder bar. When that is done, locate the
upper shock mount cross member in place. This will be just above and
behind the rear end housing (and in front of the fuel tank). Weld this
cross member in place between the stock frame rails. The lower shock
mounts weld to the rear end housing directly behind each ladder bar,
again as wide as possible. Welding in this way (all the way around the
axle housing tube) will minimize any warping of the housing. When this
is done, complete the welding of the rear of the ladder bars to the
housing. Finally, mount the coil over shocks to the upper shock mount
cross member and the lower shock mounts. Adjust the ride height to be as
close to the original as possible.
At this point, you should have the complete ladder bar kit installed and
at the same time, the stock 4-link still attached. Guess what comes
next? Unbolt the stock upper and lower 4-link, the stock shocks, and the
stock springs, and your car will be a genuine "ladder bar car".
As you noticed, the entire installation was accomplished without
removing the stock 4-link system. This is what keeps the rear end in
position, both front to rear and also side to side.
Care should be taken to not get the axle housing to hot while welding or
you could damage the axle bearings. Also, the next time that you change
gears on the 8.8 rear end or have it apart it might be a good idea to
weld the axle tubes to the cast iron rear end center section for added
strength.
A ladder bar kit will go a long way toward making your Mustang leave
harder and run straighter. This is particularly true in the 10.5" tire
Street Outlaw class where we have several 9 second runners.
A ladder bar kit, however, is not recommended if you use your Mustang
much on the street. Going straight is fine but sharp turns cause to much
binding and may damage either the ladder bars or your chassis.
If you need any more info (or a ladder bar kit), don't hesitate to call
us at (800) 851-5283.
Good Luck in 1996.