trans problems

do you have to remove trans. from the car to change the levers and will this fix my problem with the 2-3 shift.
I would take the trans out because the rear sprag MUST be a bolt in. If you have driven it much the way it is the band and also the foward clutch may be burnt. I would inspect everything because the person who put the 5.0 band did'nt know what they were doing any way. HUNKY