Assembly Lube
Recommended: Yes, by me..
New blocker rings should always be soaked in ATF, but the proper lube won't affect the ATF.
http://www.napaonline.com/Catalog/Ca...615_0006384006
You can rebuild with just ATF on everything, but if the trans won't be used for several weeks after a rebuild, ATF will not stay on the parts like lube will.
In addition, the T56 tail housing section doesn't get lubed well and during break in it very common for people to burn up their Reverse assembly. So for my peace of mind, a $7 tub of lube from NAPA goes a long way...
YMMV


