size of rear diff

[leeroy300]

Do the 3500 ctd’s ho have a larger rear diff?

 

[Deleted member 80]

12" Diff

 

[leeroy300]

still AAM? and still the same style LS carrier

 

[Deleted member 80]

It's AAM, but it's a clutch style, not Torsen.

 

[Brutal_HO]

Different cover too on these new AAM 12" diffs.

 

[leeroy300]

clutch style sux, maybe a bit smoother but not worth the strength sacrifice

 

[leeroy300]

so we need different gear oil

 

[Deleted member 80]

I am running Red Line which is LS compatible. Amsoil SVG is also.

 

[Gondul]

I am running Red Line which is LS compatible. Amsoil SVG is also.

Good to know for the AMSoil.. was wondering if I needed to get the AMSOIL Slip Lock to add to the rear diff...

 

[regal2800]

amsoil says to add the slip lock when used in diffs with LS. i just changed gear oil and i added the slip lock.

 

[Deleted member 80]

AMSOIL SEVERE GEAR is compatible with most limited-slip differentials. For applications that require additional limited-slip friction modifier, add AMSOIL Slip Lock®.