FOX Shocks 2.0 Performance Series IFP Rear Shock, 0-1in Lift (PN 980-24-664)
Fits 2001-2019 6.6L Duramax V8 (LB7) · 6.6L Duramax V8 (LLY) · 6.6L Duramax V8 (LBZ) · 6.6L Duramax V8 (LMM) · 6.6L Duramax V8 (LML) · 6.6L Duramax V8 (L5P)
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Price tracked 15 times since Jul 25, 2026 across the stores we check daily: low $229.95, high $239.95, currently $239.95.
A monotube rear shock that replaces the factory unit on a stock-height or barely-lifted truck. Fox sells it as a single shock, so you buy two for the rear axle. A monotube design keeps the oil and gas separated, which is why it fades less than a worn factory shock when you are towing on a rough road.
why this one — The straightforward rear upgrade for a truck that is not lifted, since it is valved for the 0 to 1 inch range and needs no other parts. It is also the cheapest Fox on this list. What it does not do is give you any adjustment: there is no reservoir and no external knob, so if you want to tune the ride you want the Performance Elite 2.5 instead.
Shock absorber, not a power-related part.
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No published gain figure for this part, and nothing here is a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See how we check a price and our affiliate disclosure.