Reviewed by Andrew, 4WD Suspension fitment team
Tough Dog upper control arms for the Isuzu D-MAX RT, sold as a pair. Recommended with lifted front suspension to restore correct ball joint operating angle and wheel alignment. Two versions - select yours by build date: TDCA-001 for May 2012 - June 2016 vehicles, TDCA-018 for 2016 - 2020 vehicles.
Lift an independent front end and the factory control arms end up working at angles they weren't designed for – the alignment runs out of adjustment and the ball joint operates near the edge of its travel. Aftermarket arms are the proper fix on the Isuzu D-MAX RT 2012-2020: corrected geometry brings castor and camber back into range so the vehicle steers and wears tyres like it should.
Fit as a pair and have the vehicle aligned immediately afterwards – the whole point of the arms is the extra alignment range, and it needs to be dialled in on the machine.
Doing the whole vehicle at once? We also stock the matching front Coil Springs and rear Shocks for the Isuzu D-MAX RT 2012-2020.
| Make | Model | Series | Years | Position |
|---|---|---|---|---|
| Isuzu | D-MAX | RT (MY12+) | May 2012 - August 2020 | Front |
Tough Dog fitment note: fitting UCAs to vehicles lifted more than 50mm may still suffer premature ball joint failure due to droop length, and strut spacers can affect UCA ball joint performance at full droop. Warranty does not cover use outside legal driving conditions.
Last updated: 27 August 2026
Genuine Tough Dog suspension from an authorised Australian dealer.
New to D-MAX and MU-X suspension? Read our D-MAX and MU-X suspension problems guide.
Build date decides: May 2012 to June 2016 vehicles take TDCA-001; 2016 to 2020 vehicles take TDCA-018. Send us your rego and we will confirm.
The listed price covers both sides – always replace left and right together so the axle is evenly damped and sprung. Book a wheel alignment straight after fitting: any change to the front end moves camber and castor enough to affect steering and tyre wear.
Once a lifted independent front end can no longer be aligned back into specification – typically from around 40mm of lift – corrected arms are the proper fix rather than maxed-out factory adjustment. They restore castor and camber range and keep the ball joint working in the middle of its travel.
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