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Alpha Shocks true 2.5 inch bore

Alpha Shocks are a true 2.5 inch (63.5mm) bore shock absorber. This is a significant point of difference as some shock manufacturers claim to be 2.5 inch, yet they are often 2.5 inch external body diameter and not 2.5 inch bore. In the case bigger is better; JMACX Alpha Shocks with 2.5 inch bore to provide better heat resistance meeting the needs of load carrying 4×4 vehicles.

Range of adjustment

While some shock providers claim to have higher increments of adjustment, they don’t have the same degree of force adjustment range that Alpha Shocks provide. JMACX Alpha Shocks impressively have up to 3 times the force of adjustment than other aftermarket shocks allowing for greater variation of adjustment. This results in greater control and comfort with vehicles carrying variable loads and in changing driving conditions.

Australian Made

Materials sourced and machine all within Australia. Support network nation wide no matter where you are.

Explore the features

Cerakote Finish

For durability & corosion resistance

22 Chrome Shaft

Micro cracked for improved seal lubrication

6HD High Pressure Hose

High Stress X5k

Coil Spring Steel

Internal Bump

To reduce high impact

Energised Shaft Seal

Harden Steel

Large reservoir body for greater oil capacity, up to 1LTR

Vehicle Height Adjustable

Greaseble / Sealed Spherical Bearings

CNC Billet

63MM Piston

CNC Machined Hard Andodised

6061 Aircraft grade aluminum

16-32 Progressive Adjustment

90KG Force Adjustment Tuned rebound adjustment

OEM Style Bushes

For ultimate longevity

1 of 13
Cerakote Finish

For durability & corosion resistance

2 of 13
22 Chrome Shaft

Micro cracked for improved seal lubrication

3 of 13
6HD High Pressure Hose

4 of 13
High Stress X5k

Coil Spring Steel

5 of 13
Internal Bump

To reduce high impact

6 of 13
Energised Shaft Seal

7 of 13
Harden Steel

Large reservoir body for greater oil capacity, up to 1LTR

8 of 13
Vehicle Height Adjustable

9 of 13
Greaseble / Sealed Spherical Bearings

10 of 13
CNC Billet

63MM Piston

11 of 13
CNC Machined Hard Andodised

6061 Aircraft grade aluminum

12 of 13
16-32 Progressive Adjustment

90KG Force Adjustment Tuned rebound adjustment

13 of 13
OEM Style Bushes

For ultimate longevity

Choose your Shock

Manual Range

JMACX Manual Adjustment Alpha Shocks are the standard adjustment of the Alpha Shock range while still maintaining the premium quality and performance. Manual adjustment Alpha Shocks provide up to 32 levels of adjustment depending on valving in the specifications.
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Electric Range

JMACX was the first to bring electric damping adjustment shocks to the 4×4 market. Electric damping allows you adjust from in cab. The Alpha Shock electric adjustment is provided by means of tried and tested quality Japanese technology with 20 years in the motorsport industry.
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Alpha Products

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More from alpha

Services

All Shock servicing is completed at JMACX HQ by our suspension specialists to ensure that the quality ride and performance is maintained. (Extend your warranty coverage by servicing before 50,000km to add an additional 20,000km.)

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Facilities

JMACX have over 35 Authorised installers Nationwide that sell and fit our suspension. Alpha Electric suspension can only be installed by a JMACX Authorised facility. See below to locate your closest facility.

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About Us

Read how JMACX differentiate themselves from the market in the GVM upgrades and Suspension space. With the goal to meet or exceed our customers needs, vehicle safety and stability is our number one priority.

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FAQ’s

Frequently Asked Diff Upgrade Questions

Yes, there are legal requirements and regulations for GVM upgrades. JMACX does extensive testing on all our GVMs to ensure that your vehicle remain safe and legal while increasing your vehicles capability.
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Testimonials

What our customers have to say

4.8
Read all 110 Google reviews
Mark Paterson

“Just want to thank the JMacx team for a great job on my Toyota 79 series, I am extremely happy with the result and it drives better than the day I bought it. I have had many positive comments on the upgrades to my vehicle. Everyone at the JMacx team is professional, accommodating, and enthusiastic about their systems. It was a pleasure doing business with you and I would highly recommend Jmacx if you are getting any work done on your car.”

Mark Paterson

Toyota 79 series
RHYs collier

“Highly recommended.. Actually can't recommend JMACX enough. All around good bunch of blokes and ladies. Was in a pretty big pickle and they had me sorted out, fixed up and back on the road again in a couple of hours.”

RHYs collier

RAM 1500
Scott mckeown

“Very impressive Business. Technically sound on vehicle modifications such as Chassis and Suspension modifications that allow you the confidence to adapt your vehicle to your maximum potential. These guys can help you develop your vehicle so you don't get sold something that doesn't work.”

Scott mckeown

Grenadier Quartermaster
Shaun Murray

“I am genuinely really impressed with Jmacx. Not only because of their quality product but more so after experiencing their customer service with some after sales support I needed. Without going into details you can be sure Jmacx have got your back after the sale has been made! I am really stoked to be a proud owner of a Jmacx GVM upgrade! Thanks guys and special shout out to Adam for being so gracious with me.”

Shaun Murray

RAM 1500