GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 Yukon XL - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - Allison 🢒 Disassembled Views
Figure 1:

Converter Housing/Main Housing and Associated Components (1 of 4)
Object Number: 666567 Size: MF
(1)Bolt, M10 x 1.5 x 35 Flange Hd
(2)Bolt, M10 x 1.5 x 25 Flange Hd
(3)Torque Converter Shipping Bracket
(4)Nut, M10 x 1.5
(5)Torque Converter
(6)Torque Converter Seal
(7)Park/Neutral Position (PNP) Switch
(8)Selector Shaft Nut
(9)Bolt, M8 x 1.25 x 20
(20)Torque Converter Housing
(50)Main Housing
(81)Rear Cover
(82)Rear Shipping Cover
(84)Rear Seal
(85)Yoke Assembly, 2/3 Round 1410 Flange
(86)Sealring Washer
(87)Bolt, 1/2-20 Flange Hd
(90)Bolt, M6 x 1.0 x 13
(91)Output Speed Sensor
(92)O-ring
(93)Sensor Shipping Cover
Figure 2:

Converter Housing/Main Housing and Associated Components (2 of 4)
Object Number: 670634 Size: LF
(20)Torque Converter Housing
(21)Bolt, M10 x 1.5 x 50 Flange Hd
(22)Seal
(30)Bolt, M6 x 1.0 x 13 Flange Hd
(31)Input Speed Sensor
(32)Speed Sensor O-ring
(33)Sensor Shipping Cover
(35)Converter Housing Access Cover
(40)Hydraulic Connector Assembly
(41)O-ring
(42)Pressure Tap Plug
(43)Control Main Filter Attachment Tube
(44)Control Main Magnet
(45)Control Main Filter
(50)Main Housing
(81)Rear Cover
Figure 3:

Converter Housing and Main Housing (3 of 4)
Object Number: 670805 Size: MF
(20)Torque Converter Housing
(50)Main Housing
(51)Bolt, M6 x 1.0 x 13
(52)Turbine Speed Sensor
(53)Speed Sensor Seal
(54)Sensor Shipping Cover
(55)PTO Cover Gasket
(55)PTO Cover Gasket
(56)PTO Cover
(56)PTO Cover
(57)Bolt, M10 x 1.5 x 20 Flange Hd, Coated
(57)Bolt, M10 x 1.5 x 20 Flange Hd, Coated
(60)Spring Pin
(61)Selector Shaft
(62)Selector Shaft Seal
(63)Detent Lever
(64)Nut, M10 x 1.50 Flange
(65)Park Pawl Apply Assembly
(81)Rear Cover
Figure 4:

Converter Housing/Main Housing and Associated Components (4 of 4)
Object Number: 670809 Size: LF
(20)Torque Converter Housing
(50)Main Housing
(70)Fill Tube Plug
(71)Fill Tube Plug Seal
(72)Suction Filter Seal
(73)Suction Filter
(74)Oil Pan Gasket
(75)Magnet
(76)Oil Pan
(77)Drain Plug Seal
(78)Drain Plug
(79)Bolt, M8 x 1.25 x 20 Flange Hd
(81)Rear Cover
Figure 5:

Control Valve Assembly
Object Number: 670831 Size: LF
(20)Torque Converter Housing
(50)Main Housing
(81)Rear Cover
(100)Control Valve Assembly
(101)On/Off Shift Solenoid Retainer
(102)C On/Off Shift Solenoid
(103)Solenoid O-ring
(104)Solenoid O-ring
(105)Manual Selector Valve
(106)Manual Selector Valve Pin
(110)A Trim Spring
(111)A Trim Valve
(112)A/B Trim Spring
(113)Trim Gain Valve
(114)A Trim Solenoid, N/O
(115)Solenoid O-ring
(120)B Trim Spring
(121)B Trim Valve
(122)Trim Gain Valve
(123)B Trim Solenoid, N/C
(124)Solenoid O-ring
(130)E On/Off Shift Solenoid
(131)Solenoid O-ring
(132)Solenoid O-ring
(134)Solenoid Retainer
(140)D On/Off Shift Solenoid
(141)Solenoid O-ring
(142)Solenoid O-ring
(143)Solenoid Retainer
(150)F Trim Spring
(151)F Trim Valve
(152)F Trim Sleeve
(160)Solenoid O-ring
(161)Solenoid O-ring
(162)F Trim PWM Solenoid
(163)Solenoid Retainer
(170)Accumulator Plug
(171)Accumulator Spring
(172)A/B Solenoid Bracket
(173)Internal Wiring Harness
(180)Bolt, M6 x 1.0 x 65 Flange Hd
(181)Reverse Signal Tube
(182)Bolt, M6 x 1.0 x 50 Flange Hd
(183)Pressure Switch Assembly
(190)Detent Spring Assembly
(191)Bolt, M6 x 1.0 x 12 Flange Hd
(192)Bolt, M6 x 1.0 x 50 Flange Hd