Parts for your 2018 Holden Colorado-Driveshafts

2018 Holden Colorado driveshafts — what they do and when to service them

Yes, the 2018 Holden Colorado absolutely uses driveshafts. Technical documentation including the Holden Colorado RG Service Manual (GM Service Information, Driveline/Axle — Propeller Shaft and U-Joint, 2017–2019), the 2018 Holden Owner’s Manual (Four-Wheel Drive system and driveline sections), and the GMH Parts Catalogue for the RG Colorado all describe rear propeller shafts for 4x2 models and both front and rear propeller shafts (plus front CV half‑shafts) on 4x4 models. So driveshafts are relevant to every 2018 Colorado, regardless of trim.

On a 4x2, the main propeller shaft sends torque from the gearbox to the rear differential. On a 4x4, there’s a rear prop shaft as well as a front prop shaft from the transfer case, and CV half‑shafts to each front wheel. Their job is simple but critical: transfer power smoothly while allowing for suspension travel and driveline angles. If they’re out of balance or joints are worn, you’ll feel it straight away as vibration, shudder, or clunks on take‑off.

As part of regular servicing (12 months/15,000 km is the usual Holden interval), it’s smart to:

• Inspect universal joints (U‑joints) and the centre support bearing for play, rust stain, binding, or dried seals.
• Check prop shaft and flange bolts for tightness and witness marks, look for fresh metal dust around yokes.
• Spin and feel for roughness, and note any dented tubes or missing balance weights.
• On 4x4s, check front CV boots for splits and grease fling, inspect transfer case and diff flange seals.

Most OEM U‑joints on the RG Colorado are sealed-for-life, so there’s no routine greasing, but replacement joints and centre bearings are straightforward when wear shows up. When replacing, mark the flanges to keep the original phasing, use new flange bolts where specified in the GM SI, and have the shaft balanced if the tube or yoke has been changed. After any heavy water crossing or outback work, give the driveline an extra once‑over, silt and shock loads are hard on bearings and splines.

Tell‑tales that it’s time to act include: a rhythmic vibration at highway speeds, a knock when shifting from reverse to drive, shudder on take‑off, or a chirp that speeds up with road speed. Ignoring these can escalate into diff seal leaks or transfer case wear. A quick inspection now usually saves a big bill later.

Technical sources referenced: Holden Colorado RG Service Manual (GM Service Information), Driveline/Axle — Propeller Shaft and U‑Joint, 2017–2019, Holden Colorado 2018 Owner’s Manual, Four‑Wheel Drive and Driveline sections, GMH Parts Catalogue (RG Colorado), Propeller Shaft and Axle Shafts assemblies.

Popular questions

What are common signs the Colorado’s driveshaft or U‑joints are worn?
Owners typically notice a vibration that comes in at certain speeds, a clunk when selecting drive or reverse, or a shudder on take‑off. Rust dust around a U‑joint cap, slop when twisting the shaft by hand, or a humming that follows vehicle speed are other giveaways. If it’s a 4x4, split front CV boots and grease fling are also red flags.

Does a 4x2 2018 Colorado still have a driveshaft?
Sure does. Every 4x2 Colorado runs a rear propeller shaft from the transmission to the rear diff. The 4x4 adds a front prop shaft and front CV half‑shafts from the transfer case to the wheels.

How often should driveshafts be serviced on a 2018 Colorado?
There’s no set replacement interval, but checking the prop shaft, U‑joints, centre bearing and CV boots at each regular service (about every 12 months/15,000 km) is sensible. If the ute tows, goes off‑road, or has a suspension lift, inspect more often and rebalance or replace components at the first sign of vibration or play.