Riviera V6-231 3.8L Turbo VIN 8 4-bbl (1983)
Fluid Pan: All Technical Service Bulletins
Transmission Oil Pan - Revised Gasket and Bolts
Model Year 1983
Bulletin No. 83-199
File in Group 70
Number
37
Date
Oct. '83
SUBJECT:
NEW TRANSMISSION OIL PAN, GASKET AND BOLTS
MODELS AFFECTED:
ALL THM 325-4L
FIGURE 1 - NEW FLANGE
The THM 325-4L transmission oil pan has been changed to improve the seal between the oil pan and transmission case. The new transmission oil pan
(Part No. 8635854) is thicker and has a continuous rib on the flange. (See Figure 1)
FIGURE 2 - HEX HEAD SCREW AND CONICAL WASHER ASSEMBLY
The new transmission oil pan requires a new thicker oil pan gasket (Part No. 8635884) and hex screw and conical washer assembly, (Part No. 8643693).
(See Figure 2.)
Service Information
1.
If a leak occurs refer to your service manual for diagnostic and disassembly/assembly procedures.
2.
If the oil leak is in the transmission oil pan area visually inspect the oil pan and bolts to determine if the new design parts have been used.
If the unit is of the old design, you may need to order service parts listed below:
