Robby45 in the Netherlands.

This is one of those jobs where an experienced mechanic is best.
The link below provides pictures which may help you see a small portion of what happens during a conversion.
Click on "see all 32 photos".
Also notice that the owner elected to have the torque tube serviced (bushings and seals) at the same time.

https://www.motortrend.com/how-to/1003clt-chevs-of-the-40s-3-55-1-ring-and-pinion-swap/

Last edited by buoymaker; 03/07/2022 7:30 PM.
"Adding CFM to a truck will only help at engine speeds you don't want to use."
"I found there was nothing to gain beyond 400 CFM."