C 2500 3/4 Ton Pickup 2WD V8-454 7.4L VIN W 4-bbl (1982)
Valve Body: All Technical Service Bulletins
A/T - Control Valve Without Throttle Valve Sleeve Update
Number:
86-52
Section:
7C
Date:
MAR., 1986
Subject:
THM 700-R4 TRANSMISSIONS -
1986 SERVICE MANUAL UPDATE FOR ELIMINATION OF THE THROTTLE VALVE SLEEVE
Model and Year:
1982-86 ALL MODELS WITH THM 700-R4
TO:
ALL CHEVROLET DEALERS
TRANSMISSION IDENTIFICATION INFORMATION
THROTTLE VALVE SLEEVE
Beginning on October 21, 1985, or Julian Date 294 (refer to Figure 1) all 1986 THM 700-R4 transmissions have been built with control valve assemblies
that do not use a throttle valve sleeve (refer to item #327 in Figure 2) with the throttle valve (item #326).