What If Your Vehicle Could Shift Smoothly Every Time - No Surprises, Just Performance?

September 12, 2025

Ever wonder how a gearbox’s smooth operation can define your driving experience, from daily drives to rugged 4 WD adventures? At Sunstate Gearbox & Diff Service, located in Kunda Park on the Sunshine Coast, we’ve been turning that what-if into what-is, offering rebuilds and servicing for gearboxes, differentials, clutches and transmissions.



Why Do Drivers Across Gympie, Maroochydore, and Beyond Trust Us?


Why settle for standard repair when you can get a premium gearbox and diff service right here in Kunda Park (QLD 4556)? We’re locally-owned, in business since 1993, and committed to quality- serving Sunshine Coast locals and drivers from Gympie and Maroochydore regions. Whether it’s a family SUV, or a street or strip performance vehicle- our team has the experience and tools to deliver top-tier results.




How Do We Elevate Your Vehicle’s Drive & Longevity?


  1. Gearbox, Diff & Transmission Services: From oil changes to leak repairs, upgrades, and custom builds- the whole drivetrain gets a precision touch.
  2. Clutch Services & Premium Brands: We supply and install trusted name-brand kits like Exedy- covering everything from standard replacements to high-performance racing clutches.
  3. Transmission Upgrades: Need more from your transmission? We offer upgrades- shift kits, coolers, ScanGauge tech installs, and electronic calibrations for towing or performance demands.




When Should You Act- Because Waiting Could Cost More?


  • If you're hearing whining, slipping gears, or sensing hesitation- don’t delay. Early servicing can prevent significant damage.
  • When towing heavy loads frequently, servicing intervals shrink- so upgrading or flushing your transmission proactively pays off.
  • If your clutch is juddering or struggling, switching to a performance-grade Exedy clutch might just transform your drive.




What Our Customers From Across the Coast Are Saying…


From Maroochydore to Gympie and right here in Kunda Park, our clients praise us for our expertise, approachable service, and the skill to handle everything from everyday vehicles to high-performance builds.


“Excellent service, communication and pricing.” – Damon
“Did a great job on my 30-year-old 4WD.” – Brock
“We were on holidays in Maroochydore and our Ranger started slipping gears just before a 900km tow home. Sunstate dropped everything to help us, diagnosed the issue on the spot, and got us safely back on the road. Truly grateful for their kindness and expertise.” – Anton
“Honest, hard-working bunch. Got my Navara booked in quickly and completed a diff bearing rebuild, wheel bearings, and more in no time. I’ll definitely be back if needed.” – Tony
“Couldn’t be happier! The team fixed my differential so it runs smooth and quiet again. Professional, honest, skilled, and quick turnaround. Mechanics you can truly trust.” – Al

Curious about transmission upgrades, clutch replacements, or drivetrain renewals?



Want more towing confidence?

Discover Transmission Upgrades & Scan Gauge Options.


Call us today at (07) 5476 8911 or visit us at 5 Charles Court, Kunda Park (QLD 4556) for a FREE, no-obligation quote. Whether you're local or coming from Maroochydore or Gympie, we’ll get your drivetrain dialled in perfectly. Our shop hours: Mon–Fri 7:30 am–5:00 pm; Sat 8:30 am–11:00 am.



So what if your next mechanic visit fixed it for good?

Why risk ongoing issues when professional, locally trusted gearbox and diff care is just a call- or a short drive-away?


Let us bring performance, precision, and peace of mind back to your ride.