Landrum High Travel Coil-Over Spring - Gunmetal Gray - 2.5" ID x 14" Tall - 135 lb. AS0001 which gives them about 1000%

which gives them about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-treat (a very common industry practice)

Aluminum / Foam

3-Angle Adaptor:

Edelbrock first made these aluminum valve covers in the late '50s and they're still a classic

Fits 2001-2006 (2007 Classic) Chevrolet Silverado and GMC Sierra 2500 3/4 Ton and 1 Ton HD truck with 6

Landrum High Travel Coil-Over Spring - Gunmetal Gray - 2.5" ID x 14" Tall - 135 lb. AS0001 which gives them about 1000%Landrum Performance Spring designed a coil over spring specifically for high travel applications such as: dirt, pavement and drag racing. The (VB) Variable Body Series design exceeds the high performance demands and remains consistent. Consistent Performance and Reliability Landrum Performance Springs give you the consistent high performance and reliability you need. We use state of the art designs, materials, and manufacturing processes to produce