R 2500 P/U 2WD V8-350 5.7L (1987)
When servicing any 1982 through 1987 THM 700-R4 transmission without an auxiliary valve body (Figure No. 3), the lo and reverse #5 checkball
(#55B) must be located in the control valve body.
FIGURE 1 - CHECKBALL LOCATIONS ON TRANSMISSIONS WITH AUXILIARY VALVE BODIES
When servicing any 1987 THM 700-R4 transmission produced after October 6, 1986 (Julian Date 279) the forward clutch #12 checkball must be located
in the auxiliary valve body (#55BFigure No. 1). Do not install a checkball in the control valve body.
NOTICE:
If the forward clutch #12 checkball is installed in either the valve body or over the orificed cup plug (359-Figure No. 1) in the auxiliary valve body, the
following conditions can occur:
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Delayed N-D, P-D or R-D
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Harsh N-D, P-D Shifts
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Slipping on Hard Accelerations
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Forward Clutch Distress
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No Upshift
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1-2 Tie-Up/Lo-Rev Clutch Distress and 2-4 Band Distress