Gearboxes and Diffs

Manual and automatic gearboxes, transfer cases and differential centres, shifted through every gate on the bench before they are listed. Automatics are drive-tested in the donor vehicle wherever the vehicle still runs, and the fluid is checked for burnt smell and clutch material.Ratios and bellhousing patterns matter more than model names on this category, particularly on four wheel drives where mismatched diff ratios will destroy a transfer case. Tell us what you are running and we will confirm before dispatch.Before you fit one, read our note on the five things to replace when fitting a used gearbox. It is the difference between a job that lasts and one that comes back.