In this episode of the Jaguar XJC Restomod project Tom and James discuss the work Tom’s done on building the rear axle for the 1970s coupe.

A lot of time, effort (& money!) has gone into making it suitable for the extra power the XJR engine will be putting through the rear wheels.

Another key difference to this axle and the one in the car now is the introduction of the Limited Slip Differential and the conversion to outboard discs from inboard discs it would have had at time.

There were a few reasons Jaguar opted for a inboard brakes in period:

1) It offers a reduction in the unsprung weight of the wheel hubs, as this no longer includes the brake discs and calipers.

2) Braking torque is applied directly to the chassis, rather than being transferred to it through the suspension arms.

However, there are some disadvantages, such as brake cooling - as it is more difficult to arrange for cooling air to flow over the rotor.

In the race cars in almost all cases they are converted to a outboard disc set up and those that continue with inboard require air ducting to prevent / limit brake fade.

Secondly, the maintenance and working on the brakes is more complex than traditional outboard brakes and changing discs and pads becomes more labour intensive - not a problem for us but is more challenging for the ‘home mechanic’ rather than a traditional set up.

Hope you enjoy this next instalment - we are busy editing the engine rebuild update (Part 5) so make sure you like, share, subscribe and comment below!


Website - https://www.tomlenthall.co.uk
Facebook -   / tomlenthallltd  
Instagram -   / tomlenthall.ltd