Donn't know the torque for my tiburon 03 flyweel

Torque converters are bolted up to the flywheel or flexplate. Probably 4 or 6 bolts from the flywheel engine side into the torque converter.

53-55 ft lbs

is dat a 5 or 4 lug if its 4 any honda or import as long as its front wheel drive hyundai 5 lug pattern mitsubishi or any *** car manufacturer

You can go to autozone.com and register for free for free online repair manual for your vehicle. Also google images have pics. There are also more manuals here:
http://manualspace.com/manual/search/89-toyota-celica-gt-repair-manual-online-pdf.htm

does the car have 100,000 miles? is the clutch pedal have a high release?the shift cables could be binding ,i've only replace 1 in 4yrs and that guy was drag racing the car..i don't know what gummy means, but you could also have a syncronizer worn out in sixth gear. did you look at the old gear oil for brass or metal?

Go to www.hmaservice.com and register( Vehicle by VIN). Afterward, you have access to shop manuals, service bulletins, wiring diagrams, etc. about your vehicle.

your torque specs for clutch to flywheel
15-22NM

Crankshaft pulley bolt torque is:
Min: 130 ft lbs
Max: 138 ft lbs

03 should still be under warrenty, if not check belt and power steering pulley if loose or wobbling need repair

Actual specs can be found at the dealer or in a Hayne's manual in the local auto parts store. After 17 years of doing this, I'd just take my air gun & stagger tighten the bolts,until snug, then go over them with no more than 3 "clicks" of the air gun. It'll work fine,guarunteed.