I just picked up a 95 Silverado with standard tranny. It runs great, but sometime it will not go into 1st that well. I found if I put the clutch in all the way to the floor it goes in. Could this be a sign I may need to replace the clutch? Also it seems to engage when the clutch pedal is almost all the way out. Any one have experience with this and know how much a replacement might cost? Thanks for all the input!