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Derringer connects to your OBD-II port
Rear Lift Method: Steel lift block and extended U-bolts
Precision-placed internal windage scrapers prevent excessive churning
Boot retaining lip on inlet for positive clamp reinforcement to eliminate any blown boots
2011-2014 Ford F-550 Super Duty (6
XDP ROCKER ARM SHAFTS FOR 2001-2019 GM 6.6L DURAMAX performance Derringer connects to your OBD-IIThe XDP Rocker Arm Shafts XD385 are specially designed to minimize the common oiling issues in the 2001 2019 GM 6. 6L Duramax engines. From the factory, the oil supply to the rocker arm is shut off as the valve is opened. This lack of lubrication can cause excessive wear on your valvetrain and premature failures, especially in high performance applications. The XDP Shafts feature revised oil grooves that align with the oil hole in the bushing so you
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