PSC Big Bore XD Steering Gear for 07-18 Jeep Wrangler JK, JKU SG688
SKU
PSC-SG688
We Price Match
- Part: Steering - Boxes, Parts & Seals Steering - Upgrades
- Manufacturer: PSC Steering
The stock JK steering box? It’s fine for stock tires and errands. But throw on 35s, a locker, and a weekend in Moab, and that thing’s begging for mercy. The BIG BORE XD is the fix—built with a beefy 45mm sector shaft and a reinforced case so it won’t twist, crack, or cry when you crank it hard.
* Requires PSC Pump Kit
* Requires PSC Pump Kit
Special Price $1,171.26 Regular Price $1,377.95
Bulk Item Surcharge: $20.95
PSC Motorsport SG688
The BIG BORE XD2 is the most powerful and strongest replacement steering gearbox on the market for the Jeep JK. Any Jeep JK with larger tires and/or locking front differential needs this bolt-on upgrade. The BIG BORE XD2, when combined with our Pump Kits, provides up to 35% more turning power over the OEM steering gearbox.
The sector shaft diameter has been increased from 35MM to 45MM to handle the extra torque output and prevent shear in extreme duty environments. Every Big Bore XD2 Steering Gearbox includes a NEW proprietary Pitman arm designed for the larger sector shaft.
Improved on-the-road driving characteristics and significantly increased torque output are achieved by using a 16:1 85MM piston assembly. This increased torque output will turn tire sizes up to 37" without the installation of cylinder assist, and will enable you to enjoy superb on-the-road handling as well as tackle 1-4 rated trails with ease.
Features:
45MM Sector Shaft
NEW proprietary Pitman arm
16:1 Ratio 85MM Piston Assembly
Reinforced mounting pad and case
Notes:
The supplied Pitman arm does not have any additional drop to it, therefore some applications may require a drag link flip kit.
The mounting pad of the BIG BORE XD2 has been up significantly reinforced to reduce frame flex, unwanted sector shaft deflection, and to prevent catastrophic failure of the case, resulting in a steering gearbox that weighs 15 LBS heavier than the OEM component.
Warning:
Add HWK-688-PP hardware kit when installing any Synergy MFG Front Track Bar Brace (or similar) with this product.
Using the Factory or the PSC supplied bolts with a Synergy MFG Track Bar Brace could result in steering gearbox case failure.
The larger size of the BIG BORE XD2 Steering Gearbox may prohibit the use of some aftermarket track bars.
The BIG BORE XD2 is the most powerful and strongest replacement steering gearbox on the market for the Jeep JK. Any Jeep JK with larger tires and/or locking front differential needs this bolt-on upgrade. The BIG BORE XD2, when combined with our Pump Kits, provides up to 35% more turning power over the OEM steering gearbox.
The sector shaft diameter has been increased from 35MM to 45MM to handle the extra torque output and prevent shear in extreme duty environments. Every Big Bore XD2 Steering Gearbox includes a NEW proprietary Pitman arm designed for the larger sector shaft.
Improved on-the-road driving characteristics and significantly increased torque output are achieved by using a 16:1 85MM piston assembly. This increased torque output will turn tire sizes up to 37" without the installation of cylinder assist, and will enable you to enjoy superb on-the-road handling as well as tackle 1-4 rated trails with ease.
Features:
45MM Sector Shaft
NEW proprietary Pitman arm
16:1 Ratio 85MM Piston Assembly
Reinforced mounting pad and case
Notes:
The supplied Pitman arm does not have any additional drop to it, therefore some applications may require a drag link flip kit.
The mounting pad of the BIG BORE XD2 has been up significantly reinforced to reduce frame flex, unwanted sector shaft deflection, and to prevent catastrophic failure of the case, resulting in a steering gearbox that weighs 15 LBS heavier than the OEM component.
Warning:
Add HWK-688-PP hardware kit when installing any Synergy MFG Front Track Bar Brace (or similar) with this product.
Using the Factory or the PSC supplied bolts with a Synergy MFG Track Bar Brace could result in steering gearbox case failure.
The larger size of the BIG BORE XD2 Steering Gearbox may prohibit the use of some aftermarket track bars.
Fitment:
07-18 Jeep Wrangler JK07-18 Jeep Wrangler JK Unlimited
| Searchable Sku | SG688 |
|---|---|
| Bulk Item Surcharge | $20.95 |
| Manufacturer | PSC Steering |
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