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GeoBrakes stocks OEM-grade brake drums confirmed to fit the Isuzu I 370, the cast-iron components that form the friction surface for the I 370 drum brake shoes. Available in standard and corrosion-coated configurations for your I 370, every drum is manufactured to the correct inner diameter, wall thickness, and surface finish for the Isuzu I 370
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The brake drum on the Isuzu I 370 is the rotating cast-iron bowl that the I 370 drum brake shoes press against to slow your vehicle. Mounted to the rear axle hub of your Isuzu I 370, it spins with the wheel and provides the friction surface that the shoes contact under braking. Unlike brake rotors, which can be visually inspected from outside the wheel on many I 370 vehicles, Isuzu I 370 brake drums fully enclose the shoe assembly, which means wear and damage often goes unnoticed until braking performance on the Isuzu I 370 is noticeably affected.
Standard OEM-Grade Drums for the Isuzu I 370
Standard OEM-grade cast-iron drums for the Isuzu I 370 are manufactured to the original equipment diameter, wall thickness, and surface finish specification for your I 370. They are the direct replacement for the factory I 370 drum with no modification required.
Coated Brake Drums for the Isuzu I 370
Coated Isuzu I 370 brake drums feature a corrosion-resistant coating applied to the external drum surfaces of your I 370, the hat section, outer wall, and wheel mounting face. Surface rust is a common issue on Isuzu I 370 drum brake vehicles in US, particularly during periods of non-use in winter when moisture and salt collect inside the I 370 wheel well. A coated drum on your Isuzu I 370 resists surface rust that can transfer to the wheel mounting face, making future drum removal significantly easier at the next I 370 brake service.
Isuzu I 370 brake drum replacement requires matching the correct inner diameter, wall thickness, bolt circle, hub bore, and drum offset for your I 370. Errors in any of these dimensions produce incorrect shoe-to-drum clearance, uneven wear, and braking problems on the Isuzu I 370. Our vehicle selector eliminates those risks by confirming the correct drum for the Isuzu I 370 exact year, make, model, and axle. Coated I 370 drum options are available for vehicles with heavy salt exposure.
How long do brake drums last on a Isuzu I 370?
Isuzu I 370 brake drums typically last 150,000 to 200,000 kilometres with periodic resurfacing, significantly longer than disc brake rotors on the I 370. Each resurfacing removes material from the I 370 drum and reduces wall thickness. Once the Isuzu I 370 drum reaches its maximum allowable inner diameter, it must be replaced rather than turned again.
Should I replace brake drums on my Isuzu I 370 in pairs?
Yes. Replace both Isuzu I 370 drums on the same axle to maintain balanced braking. Drums of different inner diameters on the I 370 create uneven friction forces, causing the Isuzu I 370 to pull to the fresher-drum side during braking.
Should I replace drums and shoes at the same time on my Isuzu I 370?
Yes, it is strongly recommended for the Isuzu I 370. New shoes on a scored or out-of-round I 370 drum wear unevenly from day one. New Isuzu I 370 drums with old shoes that have worn to match the old drum surface will contact the new bore incorrectly. Replacing both together on the I 370 ensures proper break-in and maximum service life from both components.