ok so heres the deal i just changed my clutch (king cobra), flywheel,pressure plate,throw out bearing,steeda quadrant my whole rear end with 373 gears. now heres the problem after all was done i started the car and a loud chattering/grinding noise happened it was the presure plate grinding on the bell housing for some reason ford made 2 different bell housings mostly in the 89-90 models these required shaving for the king cobra presure plate to work says cj pony parts i didnt read this till after i was done so i dropped everything again to shave the bell housing down the noise went away alot its now very queit but besides that heres the big problem after as soon as i hit 4000 rpms i get really bad vibration drive shaft is new its a frpp aluminum im stuck please help
heres what cj pony parts say
*One thing to note of this clutch is that some 1986-1993 Ford Mustang 5.0L Bellhousings will possibly need to have the area "trimmed" in between the bottom/center and clutch release lever hole. Ford had two foundries make their bellhousings and only one has this issue, it is most common on 1989-1990 bellhousings. For some reason, the bellhousings from the one foundry had a raised "lip" that can cause contact/interference with the Pressure Plate. The area around the inside of the bellhousing needs to be trimmed approximately 8-10MM.
heres what cj pony parts say
*One thing to note of this clutch is that some 1986-1993 Ford Mustang 5.0L Bellhousings will possibly need to have the area "trimmed" in between the bottom/center and clutch release lever hole. Ford had two foundries make their bellhousings and only one has this issue, it is most common on 1989-1990 bellhousings. For some reason, the bellhousings from the one foundry had a raised "lip" that can cause contact/interference with the Pressure Plate. The area around the inside of the bellhousing needs to be trimmed approximately 8-10MM.