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Heavy Duty Shock Design QA1 Engineers have tackled the challenge of supporting the weight and payload capacity of modern trucks by designing a heavy-duty version of our Pro Coil system
SAE Viscosity Grade (Motor Oil) 15W40
The kit is completely bolt-in
This eliminates almost all upper trailing arm bushing movement
most well thought out 4 point roll bar available
Manley Valve - Exhaust, Valve-S/D 1.600,+.200 Shopify Collective Heavy Duty Shock Design QA1Manley Severe Duty Valves deliver the ultimate in strength, reliability, and high performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH 428 for exhaust and NK 844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400F, Manley exhaust valves endured 100 million cycles, while competitors failed after just
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