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Dana 44 and Corporate 10 bolt Crossover Steering
The straight
axle GM trucks suffer from some serious steering problems, one
of the biggest is due to poor geometry. The factory GM steering
will fail to steer the truck when you're in twisted offroad
situations, in fact, there are many times when the steering box
is all the way to lock and the tires are pointed straight! Our
solution to this is a "crossover steering" system where the
draglink runs side to side instead of front to back. This
dramatically improves the steering geometry and makes turning to
the axle stops possible under all conditions.
The Dana 44
and GM Corporate 10 bolt crossover steering arm bolts to the top
of the knuckle on the right hand side of the axle, just like the
factory 4wd steering arm bolts to the top of the left hand
knuckle. The problem is, none of the right side knuckles are
machined for this steering arm. The right side knuckle must also
have a large cast-in flat surface on the top of the knuckle to
be machined for the crossover steering kit. This "flat top"
knuckle is commonly found on '76 and older D44 axles. ALL GM
corp 10 bolts and most '77-up D44's will need the knuckles from
an older D44 in order to complete the crossover steering. The
"flat top" and "round top" knuckles are shown below to
illustrate the difference: The flat top knuckle you need is on
the right. And if you don't have good OE knuckles, check
out our ultra-beef Reid Racing/Dedenbear knuckles
HERE.
Note that the
tie rod arm heights on the knuckle and the direction of the
taper for the tie rod can vary by application so the best thing
to do is get both the left and right knuckles and the tie rod
for your crossover conversion. The knuckles will
interchange with many Dana applications, even in Jeep, Ford or
Dodge, but keep in mind the tie rod arms and other seemingly
minor details could make a big difference when you try to bolt
it all together.
Also be aware that drum brake steering knuckles have a rotated
spindle hole pattern and will not work with the crossover
steering without modification. This caught one customer totally
by surprise when he tried to bolt the kit together.
Offroad
Design cannot currently supply knuckle sets since due to the
nature of the salvage business, we just don't have any!
But we do the machine work on your knuckle if you send it in,
price is $70, and it comes back ready to bolt in.
Once you have
the correct knuckles on your truck and the right side is
machined to accept the bolt on steering arm, the parts required
to do a crossover steering on a GM truck with a Dana 44front
axle are:
Pitman arm:
This is the arm attaching to the steering box shaft. This is
available from ORD as part of our kit or separately if you like.
Part #: U9012
Price: $70.00
Steering arm:
This is the arm that attaches to the steering knuckle on the
axle. It uses factory type studs, cone adapters and locknuts to
bolt to the knuckle. The D44 install kit is available as an
option as shown below.
Arm Part #: U9010
Arm Price: $135.00
Install kit part #: U9011
Install kit
price: $30.00
Draglink:
This is the link that ties the pitman arm and steering arm
together.
We will sell
the threaded tube and the ends separate if you wish. At this
point, the draglinks are custom built to your measurements for
your truck.
Tube part #: GU9015
Tube price: $95.00
Ends for draglink: $95 per pair (1 LH, 1 RH with jam nuts).
These are Spicer HD type ends.
2wd GM steering box: This is required
because the factory 4wd shaft will not allow you to use a pitman
arm necessary for side to side motion of the steering.
Installation
notes:
The Offroad Design D44 steering arm end is cut on an angle
to correct
for the kingpin axis inclination angle and keep the angle on the
rod end minimized for best life of the joint and more vertical
wheel travel without steering bind. We've attempted
crossover steering systems using arms that aren't built with the
angled end and the rod end was maxed out at ride height!
No droop available at all. This is an essential feature
for a properly built fully functional system.
Our steering arm and pitman arm are both tapered for the large
GM tie rod ends. These are not the same as the draglink
ends, be aware. We can custom build the steering arm with
no hole if you wish, or the holes can be drilled out for a heim
joint. We've had the best luck with using factory type tie
rod ends for steering since they are a better single shear
connection and have good service life.
Our draglink
is bent to help clear the factory crossmember. We cannot
guarantee that you will not have some contact with the
crossmember, it may require some trimming to work under all
suspension conditions. '67 to '72 GM trucks can often use a
straight draglink but we send the bent version to minimize angle
on the link ends.
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category you would like more information on.
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