88grandmarq
07-29-2016, 03:27 PM
Fellow Crown Vic member contacting me about doing a Jmod on his retired CVPI from Indiana with 98K on the odometer. He drove down from Nashville to the shop. The OEM pressure regulator valve had some minor scuffing/wear and the boost and OD servo regulator shuttle valve were both worn. Installed a new Tuff plate and drilled the plate;
hole 1- .160"
hole 2- .104"
hole 3- .180"
hole 4 & 5 - .113"
hole 6 - .160"
hole 7 - .093"
hole 8 not used
hole 9 &11 -.125"
hole 10 -.093"
Its important to open the hole in the gasket for hole #4, I use a hollow punch for this. All the worn shift valves were replaced with Sonnax shift valves. Valve body rebuilt and installed with new gaskets and Motorcraft filter. Transmission shifted perfectly,
hole 1- .160"
hole 2- .104"
hole 3- .180"
hole 4 & 5 - .113"
hole 6 - .160"
hole 7 - .093"
hole 8 not used
hole 9 &11 -.125"
hole 10 -.093"
Its important to open the hole in the gasket for hole #4, I use a hollow punch for this. All the worn shift valves were replaced with Sonnax shift valves. Valve body rebuilt and installed with new gaskets and Motorcraft filter. Transmission shifted perfectly,