EFS Elite rear shock absorber, 2" (40 mm) lift — Jeep Grand Cherokee WH / WK and Commander XK / XH

Grand Cherokees and Commanders gain weight quickly: a bar, a towbar, luggage, sometimes a trailer. The factory rear damper copes for a while, then the body starts wallowing over holes, takes longer to settle, and the rear end seems to move to its own rhythm.

This damper belongs to the EFS Elite range: a heavy duty line built for medium and heavy loads, on gravel and on sealed roads alike. It is the rear unit for a 2 inch (40 mm) lift, measuring 650 x 392 mm eye to eye.

Key benefits

• Twin-tube construction with a 35 mm piston and a 51-60 mm outer diameter — more oil means temperature climbs more slowly over a long, rough section.
• Low pressure nitrogen limits cavitation, the oil foaming that shows up as fading damping after a series of fast hits.
• DMC-T valving reacts within hundredths of a second and adapts to the surface instead of holding one compromise setting.
• Inner and outer wall thickness of 1.5 mm — built for loads the original damper was never asked to carry.
• Covered by a 5 year, unlimited kilometre manufacturer warranty.

Technical data

• Range: EFS Elite
• Position: rear
• Lift: 2" (40 mm)
• Dimensions: 650 x 392 mm (eye to eye)
• Construction: twin-tube, 35 mm piston
• Outer diameter: 51-60 mm
• Inner and outer wall thickness: 1.5 mm
• Gas: low pressure nitrogen
• Valving: DMC-T (Dynamic Motion Control) technology
• Weight: 2.528 kg (manufacturer data)
• Packed dimensions: 50 x 7 x 7 cm (manufacturer data)
• Quantity required per axle: 2 (manufacturer data)
• Warranty: 5 years, unlimited kilometres
• Part number: 36-3297
• Manufacturer: EFS 4WD (Australia)

Vehicle fitment

• Jeep Grand Cherokee WH / WK1 from 2005 — rear
• Jeep Commander XK / XH from 2006 — rear

It suits owners who have lifted the vehicle by around 40 mm or who habitually drive loaded: trip luggage, a trailer, a permanent fit-out. Elite is not a competition damper — it is the heavy duty version of what you expect every day, with margin left for rough ground.

Fitting notes

The manufacturer states two units are required per axle, so order a pair when you redo the rear. The damper uses eye to eye mounts at 650 x 392 mm — whenever ride height changes, it is worth checking travel and working range on the actual vehicle. Our workshop builds off-road suspension every week and can take that over.

Why buy it

• Real construction detail: 35 mm piston, twin-tube body, 1.5 mm walls and low pressure nitrogen.
• A version specified for a 40 mm lift rather than a straight factory replacement.
• A 5 year unlimited kilometre warranty from the Australian manufacturer.

If the rear of your Grand Cherokee or Commander works harder than the factory planned for, this is the right answer — order a pair and forget about it for a few seasons.

Frequently asked questions

Does the price cover two dampers?

No. The manufacturer states two units are required per axle, so order a pair for the complete rear.

Which lift is this damper for?

A 2 inch lift, roughly 40 mm.

What are the dimensions and mount type?

650 x 392 mm, eye to eye.

Is it a road or an off-road damper?

The Elite range is intended for medium and heavy duty use, both off-road and on sealed roads.

What warranty applies?

The manufacturer states 5 years with unlimited kilometres.

Frequently Asked Questions

Does the price cover two dampers?

No. The manufacturer states two units are required per axle, so order a pair for the complete rear.

Which lift is this damper for?

A 2 inch lift, roughly 40 mm.

What are the dimensions and mount type?

650 x 392 mm, eye to eye.

Is it a road or an off-road damper?

The Elite range is intended for medium and heavy duty use, both off-road and on sealed roads.

What warranty applies?

The manufacturer states 5 years with unlimited kilometres.