The Diagnosis:
Do you have these symptoms?

The 3 Stages of M32 Failure

The M32 6-speed gearbox is fitted to most Vauxhall, Fiat, and Alfa Romeo models. It suffers from a specific bearing design fault. Check your car for:

• Stage 1: The "Whine" (5th & 6th Gear) A high-pitched whining noise when driving above 40mph. It usually disappears when you press the clutch pedal down.

• Stage 2: The "Stick Nod" Watch your gear stick when you lift off the accelerator in 1st or 5th gear. Does it twitch or move backward? This means the bearings have collapsed and the shaft is physically moving.

• Stage 3: The Crunch & Bang Difficulty selecting gears, loud crunching, or total loss of drive. At this point, the casing may be damaged.

Precision Engineering, Local Service

Save your car. Upgrade your gearbox.

Don't write off your vehicle because of a dealer quote. Let us build you a stronger transmission for a fairer price.

Urgent: If you have The "Stick Nod," call us immediately. Catching it now saves the gears and casing, keeping your bill significantly lower.

Our Process: From Breakdown to Back on the Road

• Diagnostic Drive: We test drive the vehicle to isolate the noise (bearing vs. gear set).

• Removal & Strip: We remove the unit and strip it to the component level in our Kilmarnock workshop.

• Chemical Clean: Every gear and shaft is cleaned to reveal microscopic wear.

• The Rebuild: We replace worn synchros, install the Bolt Kit, and press in new Uprated Bearings.

• Refill & Test: Filled with OE spec oil and road-tested to ensure factory-smooth shifting.

Don't let a crunching gear turn into a seized engine.

Catching a gearbox fault early saves the casing and shafts, keeping your repair bill low.

The Problem: Factory Design Flaw

The standard M32 gearbox relies on bearings that are too small and suffer from poor oil lubrication in the end casing.

Dealer Solution:

Used/Scrapyard Solution:

They sell you a new unit with the same small bearings. It will fail again.

You are buying someone else's problem.

Our Solution:

The Uprated Rebuild: We don't just repair; we re-engineer.

• Uprated Bearings: We discard the standard bearings and install premium Timken or SNR bearings. These are larger, stronger, and handle higher torque loads.

• The "End-Case" Mod: On older units, we can upgrade the rear casing to the "Gen 2" design with larger oil galleries, fixing the oil starvation issue that kills these gearboxes.

• Precision Shimming: We hand-shim the bearing pre-load to 0.1mm tolerance, ensuring the shafts don't float (which causes the gear stick to move).

We Are Specialists In:

We repair the M32 & M20 6-Speed Manuals found in:

Vauxhall/Opel

• Corsa VXR, Astra (H/J/K), Insignia, Zafira, Meriva, Mokka

Fiat

• Grande Punto, Bravo, Croma

Alfa Romeo

• Mito, Giulietta, 159

Lotus

• Europa

• We Stock The Parts: We keep the Timken bearing kits and shims in stock, meaning faster turnaround times.

• Oil Upgrade: We refill every rebuild with high-grade fully synthetic transmission fluid to protect the new bearings.

• Local Experts: Based in Kilmarnock, serving all of Ayrshire.

• 6-Month Warranty: We back our engineering with a 6-month / 6,000-mile warranty.

• Faster Turnaround: We rebuild on-site. No sending your gearbox away to a third party for weeks.

Enthusiast Note: Running a tuned Corsa VXR or Astra? We can install Quaife LSDs (Limited Slip Differentials) during the rebuild to help you put that power down.

Stop the Whine. Upgrade Your Gearbox.

Don't wait for the bearings to collapse and smash the casing. A rebuild is cheaper than a replacement—if you catch it in time.