98 vw jetta trouble staying on when put in gear
 

how u guys doing im new to this forum i was hoping to see if i can get some answers to my problem i have a 98 vw jetta and recently my rear main seal broke so i bought new rear main seal and since i was gonna do that so i said the heck with it and i went and bought all new gaskets to replace everything even new sparkplugs so any way replaced everything put all back together fired up the car and it fired right up no issues but once i put the car in gear to go for a test drive the car started shaking and shut off i put the car in park again and tried to start it and again fired right up my problem is everytime i put the car in gear it shuts off but when its in park car stays on fine idling fine and everything seems perfect until i put the car in gear hopefully 1 of u guys has an answer for me thanx