A/T - Harsh 1-2 Upshift
86-47A
NOV., 1985
Subject: HARSH 1-2 SHIFT
Model and Year: 1986 THM 200-4R MODEL CRF
FIGURE 1 - THM 200-4R TRANSMISSION NAMEPLATE:
Figure 2 - Intermediate Servo Piston Assembly:
TO: ALL CHEVROLET DEALERS
Some 1986 THM 200-4R CRF models built prior to Julian date 231 (Refer to Figure 1) may exhibit a harsh 1-2 upshift at minimum to 1/2 throttle positions. This condition may be caused by an incorrect (may be pink in color) intermediate inner servo spring.
To correct this condition replace the intermediate inner servo spring with part number 8632147 (Refer to Figure 2).
Refer to the appropriate Service Information Manual for proper installation procedures.