fsvaasam

Do you really have to grind roller clutch with 4l60e when using beast sun shell?

Havent found easy anwear for this yet.

MPTrans.

No, you don't. That is a mod some of us builders use to do when we added a bearing and support to relieve the stress put on the bearing under the sun gear. Sonnax has now made this available to DIY builders with their Smart Shell #77749-02K.

fsvaasam

Thanks for information!

I have a kit from Dana and there was included an old technical DVD where they remove material from the race for the beast sunshell. In the internet i havent found much information any of doing so and i guessed there can be an option not doing it.

fsvaasam

I watch that DVD again and they used regular plastic washer what comes with the beast, so no bearing was added in the DVD.

They grind material off inside of the race because of thicker wall off the beast to have more side play there. How much side play there should be or is enough???

Without grinding i have 0.02" side play with beast and regular roller clutch race.

Stock sunshell side play is 0.14".

fsvaasam

Guess im worrying for nothing with my sunshell/race tolerances.

I just do like former rally champion said. . . . If in doubt, flat out

PBA

Years ago they used to grind some of the inner part of the race where it could make contact with the Beast sunshell. If I remember correctly, the makers of the sunshell at that time thinned out the thickness of the shell in that area (it increased the clearance between the shell and race) so that you did not have to grind the inner part of the race anymore. I have not seen any problems here in years, so I gather you are ok without any grinding here.