Step 2: Remove Oil Filter And Gasket; Step 3: Observe Linkage And Components; Step 4: Remove Valve Body; Step 5: Remove Support Plate And Separator Plate - TCi Turbo Hydramatic 350 Installation Instructions

STEP 2 Use a screwdriver to remove two (2) screws and remove the oil filter and filter gasket.
Put them in the oil pan. (See Figure 1)
STEP 3 Observe the location of the following: (See Figure 1) Manual linkage, detent spring and
roller, s-link or offset link, detent control valve link and lever, and support plate.
STEP 4 Remove pivot clip holding detent control valve lever in place. (See Figure 2) Remove
lever also and set them in the tray. Remove eighteen (18) valve body attaching bolts. (See
Figure 3) Remove valve body by pulling straight down and disengaging manual valve and link
from manual lever. (Do not let manual valve fall out of valve body.) Put the valve body in the oil
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pan and replace with new TCI manual/automatic valve body.
Figure 2
Figure 1
STEP 5 Remove support plate bolts and support plate. (See Figure 3) Remove separator plate,
gasket and four (4) check balls. Check balls are located between the plate and the case.
STEP 6 Vacuum Modulator: No modification is necessary for this application. Part throttle shift
points can be lowered 5-6 mph by installing the gold spring in back of the modulator valve.
Remove modulator and valve. (See Figure 7) Insert spring on end of valve and install valve and
modulator as removed. Reconnect vacuum line. Adjustable modulator should be used with this
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valve body kit. You can purchase this from TCI or any GM dealer.