Timmco axle upgrades! More beef for your Rover!

[DHappel]

Many of you know Timm Cooper.  He's built a ton of amazing trucks and custom fab projects over the years.  He's now doing high-end axle options for Rovers, starting with the Salisbury axle.

The simple description - 35 spline bolt-on upgrades for the Salisbury.

Detailed info follows

TECHNICAL DESCRIPTION

Spindles: machined from USA sourced 4130 chromoly steel billet, 50MM O.D. bearing surface diameter, for inner and outer bearings, takes Timken 32010X metric tapered roller bearings. Inside pass-thru diameter for axle shaft 1.530"

These spindles are designed to position the late style Defender/D1/RRC wheel hub exactly as the 1994-2002 factory disc brake Salisbury rear axle. This allows full compatibility with factory brake components for late 110/130 rear applications.

 

Axle shafts: These 1.500" 35 spline 4340 chromoly shafts have an integral forged drive flange (like real trucks) with a 15 (that's right, fifteen) bolt pattern.  The factory 5 bolt pattern was a significant downgrade from the old Land Rover Series 6 bolt, and is troublesome..... We fixed that!!

 

The factory Land Rover wheel hubs this kit is designed for are the 1994-2015 Defender style, also used on 1990-1995 RRC, and 1994-1999 D1. This is the hub the factory used on all the disc brake rear Salisburys. The casting # is HRC1924.  We machine these to fit the larger bearings, and drill them for the 15 bolt drive flange pattern.

 

Again, due to the spindle / hub offset, this kit is compatible with all the rear brake components for the 1994-2002 110 and 130 models, making disc brake conversions to early drum brake Salisbury rear axles a bolt-on affair with stock brake parts.  Even the earlier Series III 109 rear Salisburys can be upgraded with this kit, only the LH axle shaft is different length.

ADVANTAGES OF TIMMCO 35 SPLINE UPGRADE

·         All TIMMCO axles, spindles and drive flange bolts are manufactured in the USA from USA steel.

·         Compatible with stock Defender 110/130 disc brake rear Salisbury brake components.

·         If installing on a drum brake Salisbury, this version of the kit provides a complete rear disc brake conversion to late Defender 110/130 setup.

 

TIMMCO 35 Spline Shafts:

·         35 spline axles are 1.500” diameter.  Stock Salisbury 24 spline shafts are 1.240”

·         90% stronger than 24 spline chromoly

·         120% stronger than stock Salisbury axles.

 

TIMMCO 35 15 Bolt Spindle:

·         TIMMCO 15 bolt flange is FAR less likely to loosen

·         Larger chromoly spindle and higher capacity bearing setup is approximately 50% stronger than stock.

·         Integrated one piece axle/drive flange eliminates spline wear and backlash issues

·         With a TIMMCO 15 bolt flange, each of the 15 bolts carry 1/3 the load compared to the stock 5 bolt pattern

·         The 5 bolt setup has proven too weak for more demanding use.  Loose/broken bolts are repeated problems with these vehicles.

·         Selective fit bearing preload spacer simplifies maintenance, eliminates bearing "creep" and wear on spindle, and increases rigidity, reducing brake pad "knock back" and low brake pedal in more demanding applications

 

[DHappel]

There will be 3 kits offered as follows:

(this is being written as of 12/13/23 for reference)

 

35 spline chromoly axle / big spindle kit for 1994-2002 Defender 110 factory disc brake Salisbury rear 

Retail Price: $2,585 +$250 hub core charge

Includes:

- 1 Pair of cromoly big bore spindles

- 1 Pair cromoly 35 spline 15 bolt axle shafts

- 1 Pair new disc brake wheel hubs

- Bearings and hardware

 

35 spline chromoly axle / big spindle kit and complete disc brake conversion with hubs, brackets, calipers, rotors for 1983-1993 Defender 110 factory drum brake Salisbury rear

Retail Price: $3,485

- 1 Pair of cromoly big bore spindles

- 1 Pair cromoly 35 spline 15 bolt axle shafts

- 1 Pair new disc brake wheel hubs

- Bearings and hardware

- Brake components: calipers, caliper brackets, rotors, and brake hardware

 

35 spline chromoly axle / big spindle kit and complete rear disc brake conversion kit with hubs, brackets, calipers and rotors for 1972-1985 Series III factory drum brake Salisbury rear

Retail Price: $3,485

- 1 Pair of cromoly big bore spindles

- 1 Pair cromoly 35 spline 15 bolt axle shafts

- 1 Pair new disc brake wheel hubs

- Bearings and hardware

- Brake components: calipers, caliper brackets, rotors, and brake hardware

[DHappel]

I should have photos and video of these next week and will post them here.  Jesse Combs is handling distribution and will have a website up for sales by the 1st of the year which I'll also link once it goes live.  I'll try to answer any questions you may have in the meantime.

 

[DHappel]

These upgrades are intended to allow you to use a standard Dana 60 locker like an ARB - a much cheaper and easier to find option compared to a Salisbury specific locker.

 

[DHappel]

This is just the first in a series of axle upgrades coming in the next few months from Timm.  There will also be standard Rover (D1/RRC/Defender) axle upgrades soon which will be designed to keep your Rover axle alive with today's larger tires and should give SIGNIFICANT strength upgrades while still being a bolt-on solution that requires no fabrication.  Again, I'll update this thread as these become available.

This is great news for anybody who runs big power or big tires and wants to stay Rover and not fabricate super custom aftermarket axles.  Also a good option for those who run extremely heavy rigs even if you don't want to run 40" tires.  Or if you just want the peace of mind of having some extra beef.