Horrible01

OK well i have a 91 camaro and i just dumped my rear with the 2.72 gears in it and replace it with a nine bolt 3.27 gear in it. when i go to bolt up the drive shaft to the differential it fall short like 2mm. I was wondering if there was anyway around this problem. Thought this conversion was a direct swap i guess i was wrong or im doing somthing wrong. also how in the hell do you get the pistons to compress on the rear breaks. I bought the cube thing but it does not make anysense to me. Anyhelp would be great . thanks