XD STEERING BOX UPGRADE- PSC ('94-'02 4WD) PLEASE READ THE DESCRIPTION!

Description

A common failure point of the 2nd Generation Dodge 2500/3500 4WD Truck steering gearboxes is the lower sector shaft bearing and seal. This is due to the OEM single bearing design.

PSC now offers an Extreme Duty replacement that features a 45MM sector shaft and bearing that virtually eliminates side-to-side deflection. Designed with a 16:1 steering ratio that delivers 3.25 turns lock-to-lock and a modern variable valve for stable on-the-road driving and effortless maneuvering.

• Reuses OEM pitman arm
• 45mm bearing and sector shaft to eliminate any side-to-side flex
• 16:1 ratio for easier parking and less turns lock-to-lock
• Relocated and larger bearings for better sector shaft stability
• 80MM piston
• Fits 4WD trucks with T-style steering and inverted Y-style linkage
• Has same input shaft as factory gear box so OEM or Borgeson steering shaft is a direct bolt-on
• Will not work with any steering box braces
• New pressure and return line O-rings included

NOTE: Due to the increased overall size of the PSC XD steering gear, spacers are included in the kit to space the gear box off the frame. There is a 1" difference from the OEM steering gear. We suggest trimming the draglink and tie-rod at pitman arm 1/2" to clear for alignment. Some stock height trucks may need to trim the draglink threads 1/2" depending on the height of the front end.

NOTE: This Kit fits the '94-'02 Ram 2500/3500 4WD trucks and Cab/Chassis trucks.

NOTE: This PSC Steering Box Kit is not compatible with any aftermarket steering box braces.

NOTE: If you have aftermarket steering linkage like Synergy Manufacturing, your truck's suspension will need to have at least a 2 inch lift/leveling kit installed for the PSC steering box to fit. Any questions or if you are not sure, please call to discuss before ordering.

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IMPORTANT! TECHNIQUE TO PROPERLY CENTER YOUR NEW GEAR BOX
Make sure that any gear box that is installed is installed properly centered. Turn the input shaft all the way to one direction, then count turns to the full stop at the other direction. Split this number in half then turn the input shaft back to find the proper center. Once true center is found, make a paint pen mark at the top of the sector shaft that will still be visible once the pitman ram is installed, then make another line just above it on the gear box body. After the gear box is installed and the alignment completed, the lines must still line up perfectly. If not, the gear box is no longer centered and will wander on the road.
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Install and Tech Information

Download PSC SG-851 Steering Box Installation.pdf

Videos

FAQs

Part No. PSC-SG851 - XD Steering Box Upgrade - PSC - NEW ('94-'02 4WD)

Q: I have a 1997 Dodge Ram 1500 4X4 Magnum with 318. Will either the PSC XD steering box upgrade or the Delphi heavy-duty upgrade fit this truck?

A: If your Ram 1500 is stock ride height, then the PSC (PSC-SG851) box will NOT install properly due to the size. Even with a smaller leveling kit (2-2.5 inches) you still may need to trim the short drag link rod end that drops into the pitman arm, and this is due to the much larger size of the PSC gear box. But if the truck is lifted and leveled, this gear box will install with some adjustment. The PSC box is basically a 2009 and newer gear box that was reworked to bolt directly to a 2nd Generation 1994-2002 Dodge Ram 4X4 truck. The PSC does not have any adapters, the factory hydraulic hoses, pitman arm and input shaft bolt directly to the gear box but there are spacers and new bolts included to space the gear box off the frame for proper fitment. Due to the spacers and larger footprint of the PSC gear box, this moves the gear box closer to the passenger side causing the drag link to need to be shorter.

The Delphi (GG-800112) gear box is still larger and more heavy-duty than an original Mopar box but works better on non-lifted trucks due to its smaller size than the PSC. Still, it is larger than a factory box, so smaller spacers are included. (Longer bolts are not needed nor provided). The pitman arm and hydraulic lines are direct bolt-on, but the input shaft does have an adapter to be able to install a Dodge style input shaft. The factory input shaft can be used if it is in good shape or the Borgeson aftermarket steering shaft would be a direct bolt-on with no modification needed to the adapter. If you are going to use your factory steering shaft, you will install everything properly centered and the last step would be installing the steering shaft. Slide the factory shaft down and transcribe the flat spot from the factory steering shaft to the adapter. Remove the adapter and grind a flat spot to match factory shaft. Test fit and reinstall in the same orientation as removed. Now, the factory steering shaft can be used with this box.

In general, we would suggest the PSC box for any truck with a lift and running 35 inch or larger tires. Especially if the truck does any off-roading and/or someone simply wants the biggest most heavy-duty gear box available for this year range truck.