One of the problems with unibody constructed cars is
the inherant weakness and flimsiness of not having a
true frame support. Mustangs, Falcons, Comets, Mavericks,
and other Fords, and even Brand X cars were designed
with the entire body and substructure as one integrated
unit. Over the course of thirty plus years this lack
of rigidity surfaces it self in stress cracks in the
torque boxes, floor-boards, shock towers, c-pillars,
roof, and virtually every other areas of the car. As
if this weren't enough, handling and ride characteristics
suffer as well.
the future of your unibody Ford doesn't have to be so
bleak! There are ways to strengthen and stiffen the
unibody design so that it resists flexing and twisting.
One of the more popular and easier of these modifications
is to install a set of subframe connectors.
connectors have been around as long as unibodies have,
but the designs have improved significantly. When we
set out to find a set for our Mustang, we came across
Total Control Products. They have developed a two-kit
subframe system, which will virtually eliminate chasis
flex and greatly improve handling whether your car is
setup for open track, drag racing, or just daily driving.
The first kit consists of the typical long bars that
weld to the front and rear subframe sections. The second
kit is an "H" shaped cage that connects the
two sides, preventing twist on all axis.
"one" needs to be welded into place. Other
companies sell bolt-in subframe connectors, but that
does not provide as strong of a joint as welding directly
to the subframe. Kit "two" is intended to
be bolted in, this allows for removal to access the
transmission, exhaust, driveshaft, etc.
had Total Control weld in a set in our 1967 Mustang.
The car immediately felt more responsive on the road;
steering response, cornering and braking improved noticably.
More importantly we probably added another 20 years
of life to the car by preventing body twist and cracking.