4SPD TRANY INSTALL

Ive put in a few 4spd tranys before with help $ by my self. They all went in without any major problems. Saturday afternoon i decided to put my 4spd trany in my barracuda. I got it in the splines with out a hitch but thats all the further i could get it to go. The trany is about an 1/4 inch away from the bell housing & the bearing retainer bolts are just ready to go in. No matter what i did it wouldnt go any further. I had the trany in & out 3 times & all the same distance. So checked to make sure the bearing retainer would fit the bell housing & it will, tight but will fit. I also checked the bearing retainer bolts & the little washer that is molded to the head of the bolts just might be hanging it up. Not sure yet. Started to get dark & my lights battery is about dead. Never had any problems before. Yes i did get it in the splines. Anyone with ideas ?