GMC 2003 C4C042 Owner's Manual page 343

Transmission Capacity
For manual transmissions, the correct oil level is to the
bottom of the fluid fill plug opening. The oil capacity
will vary, due to the angle of the transmission, with the
vehicle. For automatic transmissions, see the Allison
Automatic Transmission Operator's Manual for oil
check and maintenance information.
Manual Transmission
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ZF S6 650 . . . . . . . . . . . . . . . . . . . . . . . . .
RT6609 . . . . . . . . . . . . . . . . . . . . . . . . . . .
RT8709B . . . . . . . . . . . . . . . . . . . . . . . . .
FS4205A, FS4205B, FS4205C
FS5205A, FS5205C . . . . . . . . . . . . . . . . .
FS5406 . . . . . . . . . . . . . . . . . . . . . . . . . . .
FS6305A, FS6305B . . . . . . . . . . . . . . . . .
FS6406 . . . . . . . . . . . . . . . . . . . . . . . . . . .
FS8406 . . . . . . . . . . . . . . . . . . . . . . . . . . .
RT8908LL . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . Pints (Liters)
12.7 (6.0)
12.5 (5.9)
25.1 (11.8)
. . . . . . . . . 11.1 (5.3)
11.6 (5.5)
18.4 (8.7)
18.4 (8.7)
18.4 (8.7)
18.5 (8.8)
29.1 (13.8)
Automatic Transmission
MD 3060 P . . . . . . . . . . . . . . . . . . . . .
MD 3560 P . . . . . . . . . . . . . . . . . . . . .
1000 Series . . . . . . . . . . . . . . . . . . . . . .
2000 Series . . . . . . . . . . . . . . . . . . . . .
2200 Series . . . . . . . . . . . . . . . . . . . . .
2400 Series . . . . . . . . . . . . . . . . . . . . .
*Add two pints (one liter) when changing spin
remote filter.
. . . . . . . . . . Pints (Liters)
52.0 (24.6)*
52.0 (24.6)*
16.0 (8.9)*
35.0 (13.5)*
35.0 (13.5)*
35.0 (13.5)*
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on or
6-89