Never take a chance on a stock gland nut on a high performance VW engine! This gland nut is made form 4130 Chromoly and comes complete with an extra strength concave Chromoly spring steel washer for maximum holding power. Fitted with special pre-greased needle bearings and grease seal. Compatible with stock 4 dowel and 8 dowel pin flywheels. Nut size is 36mm.