QA1 Aluma Matic Twintube Shock - 10.13 in Compressed / 14.38 in Extended - 2.00 in OD - Fixed Valving - Threaded H753C39 3125 " Thickness Fits Holley

3125 " Thickness Fits Holley 4160/4150 and four barrel TBI flange pattern

Engine Application: Mark IV style (except Gen V and Gen VI)

5-inch with 3/4-16 threads

Magnet-In-Wheel Style

Window Net Window Nets 1 Inch Webbing SFI 271 18x24 Window Net

QA1 Aluma Matic Twintube Shock - 10.13 in Compressed / 14.38 in Extended - 2.00 in OD - Fixed Valving - Threaded H753C39 3125 " Thickness Fits HolleyQA1's Aluma Matic non adjustable shock gives you the best ride in rodding without having to worry about valving options. 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. QA1