ok guys ive had this truck for few years now and its always been hard to shift into gear. ive always was used to it so never fixed it. well last month the master cylinder broke around the bolt and equaled no clutch, so my buddy changed it, slave cylinder, changed shifter bushings and welded brackets on the firewall to support it more bc the firewall moved alot. bleed everything on truck and on bench several times. and now its still hard to shift into gear when sitting still, going down the road its not that bad, and when sitting the truck wants to pull you. the truck has done this for few years it all started when my grandfather paid a guy to swap out the slipping clutch after the clutch job it has been a pain to shift we just thought it would be the clutch master cylinder and etc. we are lost on this and we have bleed the system several times. its a 91 ford ranger 5 speed 4.0 liter i bought two master cylinders at autozone and slave cylinder off ebay