Exchange diffs and diff repairs for Christchurch
Christchurch is where the workshop is. Gearhead Diffs is at 104 Byron Street in Sydenham, a few minutes south of the city centre, with off street parking out front. For Christchurch drivers that means exchange diffs can be fitted in store, repairs to your own unit happen on the bench here, and parts can be collected over the counter. Courier delivery across the metro area is typically same or next working day.
Same or next working day, typically
A unit on the shelf and ordered before 2pm is usually on the courier the same afternoon, or ready to collect from Byron Street.
Indicative only. Transit depends on the courier network and the time of day the order is placed. Tracking is emailed when the unit leaves the workshop.
- Rural delivery addresses: allow an extra working day each way.
- Oversize or heavy items such as complete beam axles travel with Move Logistics and are quoted by phone before anything is charged.
- Freight on exchange diffs is free in both directions. The return label for your old unit is in the box.
Units Christchurch drivers ask for
In stock · 5 units Holden Colorado RG Rebuilt Exchange Diff Holden $2,095 incl GST and $250 refundable core charge Choose options 
In stock · 3 units Ford Ranger PK / PJ Rebuilt Exchange Rear Diff Ford $2,765 incl GST and $250 refundable core charge Add to cart 
Made to order Holden Commodore VT-VZ Diff Rebuilt Exchange 3.73 M80 LSD Holden $2,495 incl GST and $250 refundable core charge Add to cart 
In stock · 5 units Toyota Hilux Rebuilt Exchange Diff Toyota From $1,795 incl GST and $250 refundable core charge Choose options Not seeing your vehicle? Around 120 units are on the shelf and not all are online yet. Send your rego and the team will check.
Common jobs for Christchurch drivers
The Christchurch workshop sees the full spread. Colorado, Ranger, Hilux and D-Max utes from the trades and the farms on the city fringe, Commodore and Falcon rear ends from drivers who want an LSD or a ratio change as well as a repair, and Land Cruiser and Safari 4WDs heading for the Port Hills tracks and the high country. Diagnosis is done here too: if you are not sure whether the noise is the diff, book it in and the team will tell you straight.
Want us to fit it too? Book in with the team and we'll see when we can fit you in. Fitting an exchange diff takes a few hours depending on the vehicle, so it is a booked job. If you would rather your own mechanic did it, the unit can be collected from the counter or couriered to their workshop, with fitting notes and the oil spec included.
Ordering from Christchurch
How long will my vehicle be off the road?
Only as long as the swap itself. The exchange unit arrives before anything comes out of your vehicle, so there is no waiting on a rebuild while the ute sits on stands.
Can I go to an LSD at the same time?
Often, yes. Many exchange units are stocked in both open and LSD form, so the swap can be an upgrade as well as a repair. Tell the team what the vehicle does for a living and they will say whether it is worth it.