Kyosho Inferno MP7.5 Front Gearbox Precision Alloy Upper Arm Bulk MP7509A by GPM  [MP7509A]

Kyosho Inferno MP 7.5 Option Aalloy Upper Arm Bulk For Front Gear Box(Caster 2deg,Toe-in +2deg) - 1 Pc - GPM MP7509A
Price:
USD$7.50
Brand:
GPM
Model:
MP7509A
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Precision upper arm bulk for front gearbox

This precision alloy upper arm bulk is a direct replacement for the Kyosho Inferno MP7.5 front gearbox assembly. The component locates the upper arm pivot and sets a consistent 2deg caster and +2deg toe-in, delivering a repeatable geometry reference for MP7.5 chassis setups.

Installation uses the existing gearbox and upper arm tower mounting points on MP7.5 models. Fit with standard hex screws, ensure correct thread engagement, avoid over-torquing into plastic housings, and verify suspension and steering alignment after final tightening to confirm the intended caster and toe positions.

From a tuning perspective this bulk offers a stable datum when swapping arm lengths, adjusting shock mounts, or altering roll centre positions. Replace worn or damaged factory bulks with this unit to restore consistent front geometry on the MP7.5 platform.

Does this maintain MP7.5 factory geometry?

Yes. The part is dimensioned to set the upper arm pivot and lock in the specified 2deg caster and +2deg toe-in for MP7.5 front gearbox geometry.

How should I fasten the bulk for long-term reliability?

Use the factory hex fasteners with correct thread engagement, consider medium-strength thread locker on metal-to-metal threads, and avoid excessive torque that could stress plastic housings.

What tuning benefits does this part deliver?

It provides a consistent baseline for caster and toe, making setup comparisons and iterative tuning more reliable when changing arm length, shock position, or roll centre settings.