Originally Posted by
DriftWoof
When I install the Front One Way up front, and the Spool in the back do i need to shim? Or just ad the same amount of washers as I have on my Front/Rear Ball diffs?
Just treat it like the I did the ball diff in the directions right?
No, you need to check the free play with what ever diff you run always. When I run a one way in my car I have to change the amount of shims I use versus when I have a spool. You might not even need shims, depends on how the parts you have fit your car. I know it seems to be a pain to do but saves you from getting frustrated with a broken car later. If you change your diffs back and forth a lot you can do what I do. Once I know how many shims I need for a diff, when I am not using it I put it in a small zip lock bag and with a marker write, 2 shims left, 4 shims right etc. on the bag. Then when I want to make a diff change I just make sure the shims are right and drop it in the car. I only use .1 shims so if you use .3 shims you would need to specify how many of those were needed.