Aluma Matic Threaded Body Shocks

Custom Mount Ride Sensitive Coil-Over Shock Absorbers

If you want the best ride in rodding, but don’t need all of the valving options, QA1’s Aluma Matic non-adjustable shock is the best for you.

  • Lightweight Aluminum Body
  • Non-Adjustable
  • Coil-Over
  • 100% Dyno Test and Serialized
  • Revalveable and Rebuildable by the QA1 Factory or QA1 Authorized Service Centers
  • American Made
  • Precision Machined Aluminum Piston with PTFE Piston Band
  • 15mm Centerless Ground, Hard Chrome Plated, Solid Piston Rod
  • Three Step Sealing System

Installation guide for Aluma Matic Shocks

SPRING RATE CHARTS
The charts below are a general guideline for selecting spring rates. Spring rates may vary depending on applications, usage and personal preference.

AXLE WEIGHT IN LBS.
Axle Type Spring Length 900-1099
1100-1249
1250-1449
1450-1599
1600-1899
1900+
Solid Rear Axle
8"
200
225
300 350 400 450
  9" or 10" 175 200 225 250 275 350
  12" 105 130 170 225 250 300
  14" 95 125 150 175 225 275
Independent Suspension 7" 350 450 550 600 650 Call
  8" (Chrome) 300 400 450 500 600 Call
  9" 220 300 350 450 550 650
  10" 200 250 300 400 450 550
  12" 150 200 250 300 400 450
 Jaguar (IRS)
10" 115 140 200 250 250 275
Corvette (IRS)
Ahead of Axle
10" 200 225 275 350 400 500
Corvette (IRS)
Behind Axle
12"
95 125 150 225 275 300

AVERAGE VEHICLE WEIGHT
Not sure what your vehicle weighs? See our detailed Spring Rate Chart for general guidelines on determining the approximate weight of popular vehicles.

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Part Number Name Mounting Recommended Ride Height Spring Length Compressed Height Extended Height Price Qty
ALN4855P Aluma Matic Poly 9 / 10 10.125 14.375
$172.37
ALN5855P Aluma Matic Poly 12 11.125 16.375
$172.37
ALN3855P Aluma Matic Poly 7 8.625 11.375
$172.37
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