PRP's OEM replacement crank timing belt guide for all Nissan RB engines (both Twin Cam and Single Cam variants).
A simple solution which replaces the OEM washer which tends to compress and allow balancers to come loose.
To Suit:
Nissan 180SX/S13
Skyline R31, R32, R33, R34
Silvia CA18DET
RB20DET/RB20DE