I have a 2004 Jeep Wrangler TJ. 5 speed manual transmission. Not sure of the model. For the last couple of days it's been harder to shift into gears. Somtimes a little grinding. (Yes clutch all they way down.) More so when the vehicle is at operating temperature. I went on a drive today about 10 minutes and then way back home I come to a stop sign.. clutch in, hard to get in the first but it did snap in. Started to let off the clutch with some gas and there is a noticeable pop. Sounded like it came from underneath me. Engine completely died. And now there's no crank. All electrical and power seems fine. Something to note after the pop I can easily and smoothly go into every gear now. I just recently put a new engine in new clutch new flywheel new bearings. Clutch pedal is still stiff. Thoughts?