For sale - A/D, J, LH Type Overdrive Oil Pressure Gauge. Knowing the pressure your overdrive hydraulic system is producing is the primary diagnostic indicator. If your Laycock de Normanvile overdrive is not functioning as you want, this purpose-built Oil Pressure Gauge will indicate what needs to be done to correct the problem, as mentioned in all the shop manuals. For more detail and to order go to:

https://tinyurl.com/OD-oil-gauge