MAHLE Original Piston Rings - 4.030" Bore - 1/16 x 1/16 x 3/16" Thick - Standard Tension H757C34 This is independent and works

This is independent and works alongside any delay box

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Turning the adjustment knob will extend spring cup up to 7/8" to increase or decrease spring pressure

Combine this with soft bushings that have massive amounts of deflection and you're left with poor performance

1997-2003 FORD F150

MAHLE Original Piston Rings - 4.030" Bore - 1/16 x 1/16 x 3/16" Thick - Standard Tension H757C34 This is independent and worksProduct Description: Piston Rings MAHLE Original 4. 030 in Bore Drop In 1 16 x 1 16 x 3 16 in Thick Standard Tension Steel Plasma Moly 8 Cylinder MAHLE Performance boasts the most extensive line of performance engine bearings in the market hands down. Combining the legendary CLEVITE bearing brand for domestic applications with the global coverage in the MAHLE brand for the import market, MAHLE Performance truly is the engine bearing of choice in the