So...I decided to take apart my transmission to my 1954 Chevy Truck (235 engine) to diagnose an issue with the 2/3 shifter lever not moving. Long story short is I pulled out the spline from the rear and the needle bearings all fell out.

What is the best way to get the bearings all back in correctly? Mind you this is my first experience working on a vehicle. Any help is appreciated.

Carlos