make sure nobody has been under it and turned the allen or hex head screw and tried to pull it out i had an express oil change place do that to mine idiot under there thought he had to take it out to put fluid in it hold the shifting forks i lost 5th and reverse because he stopped when he saw he was messing up
Yeah if its a five speed more than likely a clutch issue. Had this happen to me going down the road when i whiped out my clutch disc into nothing but metal fins.
88 gt with stock 5.0 block, gt40p heads, b cam, 24lb injectors, cobra upper and lower intake with 1/2in spacer, 70mm tb, mac cai, pro-m maf calibrated for injectors, msd dist. with flame thrower coil and 6Al box, under drive pulleys, short belt no (smog pump), sct chip with a9l comp,ford racing shorty headers,bbk h-pipe to flowmasters, zoom stage 2 clutch, 373 gears, and nitto 555rs!