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Product Description

All Gearworks items are limited stock, Please contact us for availability before placing order.

Gearworks HP10 thirdmembers have won more off road races than any other high pinion drop out. Our attention to detail, using only the highest quality components and thorough testing has made for a winning combination.  

Each thirdmember is especially set up for your application. Whether it’s a front or rear application we have you covered. With carrier bores in 3.25″, fitted with a 40 spline, spool.  Gearworks housings are already pre-machined, drilled and tapped for ARB air lockers, Should you need to change from a spool at a later date  The 3.25″ case uses forged main caps and ARP Chromoly cap screws for retention and a single load bolt.  The tail bearing uses a .812″ tall bearing adding capacity over others housings and is retained by a bolt in retainer plate.  They include a hard anodized 2024 billet Pinion Support with large Timken bearings, a double lip pinion seal with a dust exclusion lip, and a billet 1350 yoke with a seal guard welded on.

Your choice of ratios; 4.57 – 4.86 – 5.14 – 5.43 – 5.83 – 6.20

As these are built to individual specification please call us on +44 (0) 1732 463600 as there are numerous options in terms of gear type and ratio.

We Ship the built housing mounted to a wooden frame in a plastic shipping crate .
Price listed is the Starting Price - subject to individual specification.

Specifications

Brand
Gearworks
Product Code
GPHPSB40
Weight
41.5kg

Customer Reviews

Gearworks High Pinion Small Bearing Differential fitted with a 40 Spline Spool

Product Code GPHPSB40

All Gearworks items are limited stock, Please contact us for availability before placing order.

  • Unmatched Race-Winning Performance – More off-road victories than any other high pinion dropout.

  • Precision-Built for Strength & Reliability – Designed with top-tier components and extensive testing.

  • Tailored for Your Application – Available for both front and rear setups.

  • Heavy-Duty 3.25" Case – Features forged main caps and ARP chromoly cap screws for maximum retention.

  • 40-Spline Spool – Engineered for extreme durability and power transfer.

  • ARB Air Locker Ready – Pre-machined, drilled, and tapped for future locker conversion.

  • Enhanced Load Capacity – .812" tall tail bearing, secured by a bolt-in retainer plate.

  • Premium Pinion Support – Hard anodised 2024 billet pinion support with large Timken bearings and a double-lip pinion seal with a dust exclusion lip.

  • High-Strength Yoke – Equipped with a billet 1350 yoke featuring a welded-on seal guard.

  • Wide Range of Gear Ratios – Available in 4.57, 4.86, 5.14, 5.43, 5.83, and 6.20 ratios.

See full description below.

As these are built to individual specification please call us on +44 (0) 1732 463600 as there are numerous options in terms of gear type and ratio.

We Ship the built housing mounted to a wooden frame in a plastic shipping crate .
Price listed is the Starting Price - subject to individual specification.