Description
GMB GUMZ-8 universal joint for the Mazda Boxer truck. Made in Japan by GMB Corporation. New old stock, never fitted. The box shows storage age. The part is new and unused.
Two in stock.
This is a big joint. The dealer label reads U/J MAZ BOXER INT 37 x 71mm. That means 37mm caps with internal circlips, and 71mm over the outer edges of the clips. Measured cap end to cap end it is 104mm. It is the largest Mazda joint in the GMB catalogue. It is a truck part, not a van part.
The Boxer. The Boxer was a heavier truck than the Titan. Kia built it in Korea as the Kia Boxer, a 4 tonne truck. The MCB catalogue lists GUMZ-8 against Kia as well as Mazda.
Not a Bongo part. Our old listing said Bongo and Proceed. That was wrong. Those joints are far smaller. If you have a Bongo, see our GUMZ-12 instead.
Off the box
- GMB GUMZ-8
- GMB Corporation, made in Japan
- Dealer label: U/J MAZ BOXER INT 37 x 71mm
- Barcode 0110003658532
Fitment
The Mazda numbers are 0727-25-060 and 0727-89-251. Koyo sell it as TM37104 and Matsuba as UJ416. Get a vernier on the old joint. You want 37mm across a cap and 104mm cap end to cap end. Send us your rego and we will do the digging if you would rather we did.
Fitting
- Measure before you order. On this one the numbers matter more than the badge.
- The circlips sit inside the yoke bore. Check yours are the same.
- Support the shaft before you split it. A truck propshaft is heavy.
- Mark the shaft halves before you separate them so they go back in phase.
Best fitted by a qualified mechanic.