Firebird V8-305 5.0L VIN F FI (1987)
and reverse #5 checkball in a THM 700-R4 transmission produced without an auxiliary valve body (Figure 2, #55B), the forward
clutch checkball has been changed to #12 (Figure 3, #55B).
Figure 1 - TRANSMISSION I.D. NAMEPLATE
Figure 2Checkball Locations On Transmissions Without Auxiliary Valve Bodies
