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HD Shocks for Custom Air Ride

Our flagship reservoir shocks for semis with custom air ride: a 2.5 remote reservoir or a 3.0 billet piggyback. Best when you want the top of the line.

Cutaway of the HD Shocks 3.0 Billet Piggyback shock showing the billet bridge, piggyback reservoir and floating piston

What you get

  • 2.5 remote reservoir or 3.0 billet piggyback
  • 3/4 inch shaft
  • Maximum oil capacity and heat control
  • Fully serviceable
  • 1-year limited warranty

See inside the 3.0 Billet Piggyback

Watch oil pass through the billet bridge into the piggyback reservoir.

Compare all three on the Technology page

2.5 Remote Reservoir vs 3.0 Billet Piggyback

SpecHD Shocks 2.5 Remote ReservoirHD Shocks 3.0 Billet Piggyback
Body size2.5 inch3.0 inch
Shaft size3/4 inch3/4 inch
ReservoirRemote, connected by a hoseBillet piggyback, no hose
Compression adjusterOn some applicationsNo
Best forSemis with custom air ride, plus 3/4 and 1 ton trucksSemis with custom air ride and the heaviest loads