Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing Lubricants - 4 speed box and rear LSD diff

I used Redline full synthetic 75W/90 LSD oil in my BTR axle. Click image for source.



It cured the clicking I got when manoevering on full lock, suggesting the friction modifier works better than that in the factory supplied oil (assuming it included any). Note that I found my axle required more than the handbook suggested (1.6 litres) so had to order a second bottle.