Cougar gearbox mystery

[matto]

Having not raced since 1995 I am very happy to find this site for reference information. My first post aims to solve my Cougar gearbox mystery.

I have Cougar 1 but the diff looks to be Cougar 2 team or racing, it is fully ballraced, has plain washers instead of lobed ones, there is no evidence of friction paper, the washer carriers are alloy and the pulley flanges push on instead of screwing in.

Can anyone confirm what type of diff this is?

Lastly and most importantly does anyone know where I can find a new diff pulley & drive belt? The pulley has three or four cracks in it and the belt looks just about shot.

Many thanks, Matt.