Shock Absorbers

BOSS 12 way adjustable shock absorbers are at the forefront of shock absorber technology. 100% oil filled with a closed cell foam insert ensure continued high performance under harsh conditions. Why 100% oil filled as opposed to gas/oil? It all comes down to cost.  Gas/oil shocks are cheap to make because the nitrogen, (which is one of the cheapest gases around), takes the place of where oil should be (oil costs more).

If you pull one of these shocks apart you will notice there is only just enough oil to cover the piston and valve, once this small amount of oil gets hot it relies on the gas pressure to stop it aerating. The higher the gas pressure the more chance the shock will not work at all when it gets hot because the pressure forces the valves open (even pressure both sides also called cavitation).

BOSS shocks will not fade under hard use, the piston and bypass tube is continually submerged in oil, keeping it cooler and displacing heat through the walls of the shock.

BOSS shocks are the only shocks on the market with 12 adjustable settings for rebound dampening. This allows a huge range of adjustment for vehicle type, weight of vehicle and other changing factors. On the harder settings compression dampening is also affected however the main purpose of a shock absorber is to control rebound dampening, the springs are for compression!.

BOSS shocks are of "twin tube" design, this is for several reasons:

  1. The bypass tube for the rebound adjuster must return up the side of the shock, this goes between the piston sleeve and the outer case.
  2. Second is durability off road, if a mono-tube shock gets rock damage to the body the piston will simply jamb wrecking the shock. Our twin tube shock can sustain extensive damage to the outer case before the working of the shock is affected.
  3. Thirdly the second skin of the shock allows more room for oil, more oil attributes better heat displacement.
  4. And finally the twin tube design facilliates the closed cell insert which is there to compress when the shock shaft is inserted.


BOSS shocks use a 22mm hard chrome shaft, dual seals (wiper and oil) along with 50mm outer body. BOSS shocks are the ONLY shock in the world to offer 17 lengths to suit ANY vehicle. This is achieved by having female threads at each end allowing the customer to install any fittings needed at each end to suit the application. Once fitted the shock can be adjusted to suit the vehicle and weight via the 12 position adjustment.

The lengths are listed below.  We have shock lengths up to 1000mm extended. We believe BOSS Global to be the only company in the world to offer shocks this long.

Warranty is available on all shocks.

BOSS Global also has developed threaded 12 position adjustable dampening coil-over shocks for the IRS front suspensions found on Toyota, Mitsubishi, Nissan, Ford and many other 4x4 off-road and 2wd on-road vehicles.

Currently these are available in 2 lengths with billet aluminium 2 pc reversible spring seat. End fittings to suit each vehicle vary in price depending on application.



BOSS 12 Way Adjustable Shocks

*NOTE: The part number corresponds to extended and compressed length on the shock. i.e. 559 is equal to 559 mm compressed and 1000 is equal to 1000 mm extended. When the fittings are installed they require a threadlocker compound.

**Ordering BOSS Shock Absorbers from Australia or New Zealand? Click here for distributor contact information.

***Corporate Orders Only. Please enquire for price and country of delivery.

Item Code# Description Image
12SA 219-320  
12SA 245-372  
12SA 279-440  
12SA 295-472  
12SA 324-530  
12SA 331-545  
12SA 336-555  
12SA 344-570  
12SA 353-588  
12SA 356-595  
12SA 386-655  
12SA 394-670  
12SA 404-690  
12SA 444-670  
12SA 482-880  
12SA 559-1000 That is correct 441mm of travel or 17.64 inches

BOSS 12 Way Adjustable Front IRS Coil-Over Shocks

BOSS 12 way adjustable front IRS coil-over shocks to suit sport compact, Pickup as well as SUV. Fully adjustable with the BOSS proven shock technology and reversible and adjustable billet spring seat.

2 lengths to suit most vehicles including Tacoma, Tundra, Hilux, F150, Colorado, D-Max, Rodeo..........................

Shortest 235mm compressed 360mm extended

Longest 280mm compressed 450mm extended


Key Benefits

  • 12 way adjustable dampening
  • 60mm body
  • 22mm shaft features female thread to enable any combination of top mounting
  • Female thread in the base of shock bottom for combination of bottom configuration
  • Oil/foam filled twin tube construction
  • Durable rubber boot protection
  • Virtually any length available
  • Can be mounted upside down for less unsprung weight
  • Forged pin or loops, chrome plated for durability

BOSS Shock Accessories

Item Code # Description Image
SHO-#2 BUSH Item #2 shock/loop 18mm urethane bush - also requires SHOCK-LOOP
SHO-A1300LL Eye/eye shock 13.50/8.90 mini truck fronts each
SHOCK-LOOP Shock loop chrome only - also requires SHO-#2BUSH
SHOCK-LP-01 Loop 37mm diameter
SHOCK-LP-02 Loop 45mm diameter
SHOCK-STEM-01 Stem 87mm length
SHOCK-STEM-02 Stem 107mm length


AUSTRALIAN & NEW ZEALAND BOSS SHOCK DISTRIBUTOR:

For all Australian & New Zealand BOSS Shock Absorber Orders & Inquiries please contact:

BOSS AUSTRALASIA

Mb: 0488 488 512
Ph: 1300 855 161
5/ 132 Brisbane Road Labrador
4215 QLD AUSTRALIA
info@bossairsuspension.com.au