86 5kcst tranny slippage

["Rokas Reipa" <vytas@erols.com>]

Hi everyone,

Out of nowhere my 86 5kcst autotranny started slipping in forward gears.
Shifting looks OK, but  v.little torque is transferred, however reverse is
fine. Replaced oil, but no change. Any ideas before I take it to
"professionals"? Thanks,

Vytas
86 5kcst 140k
87 5ks 160k