Suburban 3/4 Ton 4WD V8-305 5.0L (1986)
Fluid Filter - A/T: Technical Service Bulletins
A/T - Updated Filter and Seal
GMC NUMBER:
88-T-53
GROUP:
7A - Automatic Transmission
DATE:
November, 1987
CORPORATE
NUMBER:
867107
SUBJECT:
SERVICE AND PARTS INFORMATION ON A NEW TRANSMISSION FLUID FILTER AND FILTER SEAL
MODELS:
1982 - 1987 LIGHT DUTY MODELS AND 1988 C/K TRUCKS EQUIPPED WITH THM 700-R4 AUTOMATIC TRANSMISSIONS
BULLETIN COVERS:
A new design THM 700-R4 transmission fluid filter and filter seal. The new design transmission filter is a wider filter that has a felt element in place of
the screen element and a shorter filter neck. The filter also has a molded body that locates over the valve body bolts, thus eliminating the need for the
filter retainer clip. The new design filter seal is a wider compression type seal that fits snug in its bore.
FIGURE 1 - THM 700-R4 TRANSMISSION IDENTIFICATION INFORMATION
FIGURE 2 - OIL FILTER ASSEMBLY
DATE OF PRODUCTION CHANGE: (Figure No. 1)
Beginning July 6, 1987 (Julian date 187) all 1987 THM 700-R4 transmissions were produced with the new design transmission filter (71) and filter seal
