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Fabco TC-38 Transfer Case Parts List — Every Part Number, In Stock Online

This is the complete factory service parts list for the Fabco TC-38 transfer case, organized by shaft assembly exactly like the factory book — rear output, front output, intermediate and input shafts, plus the air-shift assemblies and case parts. Every Fabco part number below links to that exact part at Pro Gear & Transmission, Fabco’s authorized distributor. Check the nameplate on your transfer case before ordering, or call 877-776-4600 and we’ll identify what you need from the serial number. Parts marked NLA are no longer available new — superseded numbers link straight to the current replacement part.

TC-38 parts manual (PDF)

Download the free interactive TC-38 Parts Manual (PDF) — every part number in it is clickable and buyable, the numbered callouts on the exploded-view drawings jump to their row in the parts list, and each in-stock row has a blue Add-to-Cart arrow. The original factory scan and the TC-38 Service Manual are also free. More models on our Fabco manuals page, and full model info on the TC-38 model guide.

Need TC-38 parts or a complete unit? Shop all Fabco transfer case parts or browse complete truck transfer cases in stock at Pro Gear — call 877-776-4600 for discount pricing.

Rear output shaft

Item Fabco Part # Description Qty
5 233-0455 Bearing, Cone 1
6 233-0456 Bearing, Cup 1
7 233-0457 Bearing, Cone 1
7A 233-0458 Bearing, Cup 1
17 235-0484 Cap, Output Shaft Bearing 1
17A 235-0632 Cap, Speedo 1
23 237-0589 Carrier, Rear Output 1
26 265-0238 Bolt, HH 7/16-14 NC x 1 1/4 12
41 427-0466 Gasket, Rear Output Seal Carrier 1
44 432-0554 Gear, 35T Rear Output 1
57 688-0634 Nut, 1-20 Self Locking 1
57A 688-0743 Nut, 1.767-18 Bearing Lock 1
59 688-0697-004 Nut, 1 1/2-12 Self Locking 1
65 732-0372 Seal, Rear Output 1
71 744-1322 Shim, Coral .031 A/R
71 744-2322 Shim, Pink .016 A/R
71 744-3322 Shim, Blue .005 A/R
71 744-4322 Shim, Red .002 A/R
83A 758-0374-108 Plug, Speedo Shipping NLA — call for replacement 1
84 762-0292 Ring, Split Retaining 1
85 769-0456 Shaft, Rear Output call 877-776-4600 1
85A 769-0466 Shaft, Rear Output 1
103 883-0988 Tube, Shipping Oil Seal Protector 1
108 927-0758 Washer, Bearing Spacer Rear Output Shaft (2.156 ID x 3.00 OD x .145 Thk) 1
109 927-0775-001 Washer, Rear Output Shaft Front (1.062 ID x 2.25 OD x .187 Thk) NLA — call for replacement 1
109A 927-0829 Washer, Rear Output Shaft Front (1.78 ID x 2.25 OD x .125 Thk) 1
115 927-0828 Washer, Between Bearing & Yoke (1.957 ID x 2.50 OD x .125 Thk) 1

Front output shaft

Item Fabco Part # Description Qty
2 233-0274 Bearing, Cup 2
9 233-0485 Bearing, Cone 2
10 233-0487 Bearing, Cone 1
11 233-0545 Bearing, Cup 1
12 233-0547 Bearing, Cup A/R
13 233-0548 Bearing, Cone 1
17 235-0484 Cap, Output Shaft Bearing 1
25 237-0587-002 Carrier, Front Output Seal 1
26 265-0238 Bolt, HH 7/16-14 NC x 1 1/4 12
37 427-0339 Gasket, Carrier 1
45 432-0556 Gear, 20T Clutch 1
50 432-0677 Gear, 35T Front Output 1
59 688-0697-004 Nut, 1 1/2-12 Self Locking 1
60 688-0739 Nut, 1 31/32-18 Bearing Lock superseded by 688F-0739 1
66 732-0384 Seal, Front Output 1
71 744-1322 Shim, Coral .031 A/R
71 744-2322 Shim, Pink .016 A/R
71 744-3322 Shim, Blue .005 A/R
71 744-4322 Shim, Red .002 A/R
77 756-0268-011 Ring, Brg Spcr .560 Thk NLA — call for replacement A/R
77 756-0268-012 Ring, Brg Spcr .565 Thk NLA — call for replacement A/R
77 756-0268-013 Ring, Brg Spcr .570 Thk A/R 2
77 756-0268-014 Ring, Brg Spcr .575 Thk A/R
77 756-0268-015 Ring, Brg Spcr .580 Thk A/R
89 769-0455 Shaft, Front Output 1
103 883-0988 Tube, Shipping Oil Seal Protector 1
112 927-0827-001 Washer, Front Output Shaft Rear (2.010 ID x 2.75 OD x .145 Thk) 1
115 927-0828 Washer, Between Bearing & Yoke (1.957 ID x 2.50 OD x .125 Thk) A/R

Intermediate shaft

Item Fabco Part # Description Qty
2 233-0274 Bearing, Cup (printed 232 274 in manual – factory typo) 2
3 233-0376 Bearing, Cup 1
4 233-0377 Bearing, Cone 1
9 233-0485 Bearing, Cone 2
11 233-0545 Bearing, Cup 1
13 233-0548 Bearing, Cone 1
18 235-0529 Cap, Speedo, Shipping 1
19 235-0622 Cap, Intermediate Front call 877-776-4600 1
19A 235-0629 Cap, Intermediate Front 1
20 235-0623 Cap, Intermediate Rear 1
26 265-0238 Bolt, HH 7/16-14 NC x 1 1/4 12
40 427-0529 Gasket, Intermediate Rear Cap 1
42 432-0234 Gear, Speedo Drive 4T NLA — call for replacement 1
43 432-0235 Gear, Speedo Driven 17T call 877-776-4600 1
45 432-0556 Gear, 20T Clutch 1
46 432-0558 Gear, 34T Direct 1
48 432-0675 Gear, 41T Underdrive 1
57 688-0634 Nut, 1-20 Self Locking 1
58 688-0694 Nut, 1 1/2-12 Self Locking 1
58A 688-0739 Nut, 1 31/32-18 Bearing Lock superseded by 688F-0739 1
72 744-0352-001 Shim, Red .002 A/R
72 744-0352-002 Shim, Blue .005 A/R
72 744-0352-003 Shim, Pink .015 A/R
72 744-0352-004 Shim, Coral .030 A/R
75 756-0268-001 Ring, Brg Spcr .250 Thk A/R
75 756-0268-002 Ring, Brg Spcr .255 Thk A/R
75 756-0268-003 Ring, Brg Spcr .260 Thk A/R
75 756-0268-004 Ring, Brg Spcr .265 Thk A/R
75 756-0268-005 Ring, Brg Spcr .270 Thk A/R
84 762-0292 Ring, Split Retaining 1
88 769-0454 Shaft, Intermediate call 877-776-4600 1
88A 769-0467 Shaft, Intermediate 1
95 836-0222 Vent 1
95A 836-0223 Vent 1
99 883-0473 Tube, Speedo Driven Gear 1
104 884-0228 Tube, Spacer Speedo Gear .829 Thk call 877-776-4600 1
111 927-0775-007 Washer, Intermediate Shaft Rear (1.540 ID x 2.50 OD x .250 Thk) 1
113 927-0827-003 Washer, Intermediate Shaft Front (2.010 ID x 2.75 OD x .080 Thk) 1

Input shaft

Item Fabco Part # Description Qty
2 233-0274 Bearing, Cup 2
8 233-0479 Bearing, Cup 1
9 233-0485 Bearing, Cone 2
10 233-0487 Bearing, Cone 1
11 233-0545 Bearing, Cup 1
13 233-0548 Bearing, Cone 1
16 235-0375-002 Cap, Input Shaft Rear 1
24 237-0587-001 Carrier, Seal, Input not stocked — -002 and -005 versions available, call to confirm fit 1
26 265-0238 Bolt, HH 7/16-14 NC x 1 1/4 12
37 427-0339 Gasket, Carrier 1
45 432-0556 Gear, 20T Clutch 1
47 432-0674 Gear, 19T Underdrive Pinion 1
49 432-0676 Gear, 35T Input 1
59 688-0697-004 Nut, 1 1/2-12 Self Locking 1
60 688-0739 Nut, 1 31/32-18 Bearing Lock superseded by 688F-0739 1
66 732-0384 Seal, Input & Front Output 1
71 744-1322 Shim, Coral .031 A/R
71 744-2322 Shim, Pink .016 A/R
71 744-3322 Shim, Blue .005 A/R
71 744-4322 Shim, Red .002 A/R
76 756-0268-006 Ring, Brg Spcr .435 Thk A/R
76 756-0268-007 Ring, Brg Spcr .440 Thk A/R
76 756-0268-008 Ring, Brg Spcr,445 Thk A/R 2
76 756-0268-009 Ring, Brg Spcr .450 Thk A/R
76 756-0268-010 Ring, Brg Spcr .455 Thk A/R
78 756-0269 Ring, Spacer Input Shaft Rear .278 Thk NLA — call for replacement 1
84 762-0292 Ring, Split Retaining 1
90 769-0453 Shaft, Input 1
103 883-0988 Tube, Shipping Oil Seal Protector 1
115 927-0828 Washer, Between Bearing & Yoke (1.957 ID x 2.50 OD x .125 Thk) 1

Air-operated front drive declutch

Item numbers in this section follow the air-declutch diagram, not the main shaft listings.

Item Fabco Part # Description Qty
14 777-0485 Spring, Air Shift Return 1
14 758-0338 Plastic Plug 14
2 235-0352 Cap, Air Shift Cyl 1
15 883-0479 Adaptor, Air Shift Cyl 1
3 675-0224 O-Ring, Air Shift Cap & Adaptor supplied as -V14 (Viton) 3
16 367-0295 Fork, Front Drive Shift call 877-776-4600 1
4 883-0887-006 Tube, Air Shift 1
17 724-0222 Set Screw 1
5 265-0892 Capscrew, Shift Cyl. Mtg. 1/4-20 4
18 947-0223 Lockwire 1
6 688-0464 Nut, Shift Piston NLA — call for replacement 1
19 758-0364 Plastic Plug 1
7 927-0643 Washer, Shift Piston 1
20 798-0245 Switch, Indicator 1
8 675-0326 O-Ring, Shift Piston supplied as -V14 (Viton) 1
21 927-0427 Washer, Copper 1
9 753-0232 Piston, Shift 1
22 746-0678 Dowel, Switch Operating 1
10 339-0223 Felt Ring, Shift Piston 1
23 427-0399 Gasket, Shift Shaft Cap 1
11 782-0288 O-Ring, Shift Shaft superseded by 675-0012-V14 1
24 235-0372 Cap, Shift Shaft 1
12 769-0285 Shaft, Air Front Drive Shift 1
25 265-0343 Capscrew, 1/4-20 x 1/2 4
13 736-0747 Ring, Nylon Bump A/R

Air shift (H-N-U / H-U)

Item numbers here follow the air-shift diagrams. Where the H-N-U and H-U variants use different quantities, both are shown.

Item Fabco Part # Description Qty
1 758-0338 Plastic Plug 1 / 2
2 235-0352 Cap, Air Shift Cyl 1
3 675-0224 O-Ring, Air Shift &Adaptor supplied as -V14 (Viton) 5 / 3
6 688-0464 Nut, Shift Piston NLA — call for replacement 1
7 927-0643 Washer, Shift Piston 2 / 1
8 675-0326 O-Ring, Shift Piston supplied as -V14 (Viton) 2 / 1
9 753-0232 Piston, Shift 2 / 1
10 339-0223 Felt Ring, Shift Piston 2 / 1
11 782-0288 O-Ring, Shift Shaft superseded by 675-0012-V14 2 / 1
13 736-0747 Ring, Nylon Bump 2 / 1
14 777-0485 Spring, Air Shift Return 1
15 883-0479 Adaptor, Air Shift Cyl 1
17 724-0222 Set Screw 2
18 947-0223 Lockwire 2
23 427-0399 Gasket, Shift Shaft Cap 1
24 235-0372 Cap, Shift Shaft 1
25 265-0343 Capscrew, 1/4-20 x 1/2 4
34 367-0294 Fork, Direct Drive Shift 1
35 367-0268 Fork, Under Drive Shift 1
36 742-0877 Shaft, H-N-U Air Shift NLA — call for replacement 1
37 883-0887-003 Tube, Shift Cyl 1
39 688-0643 Nut, Special 1
38 265-0982 Capscrew, Air Shift Cyl. 1/4-20 x 4 3/4 4
40 724-0582 Set Screw, 3/8-24 x 1/4 Allen Head A/R
41 883-0893 Adaptor, Piggyback Cyl A/R
42 769-0286 Shaft, Piggyback Cyl 1
43 883-0887-007 Tube, Piggyback Cyl. & PTO Cyl 1
44 788-0546-006 Stud, Piggyback Cyl. Mtg 4
45 688-0323 Nut, 1/4-28 4

Parts not designated on a drawing

Item Fabco Part # Description Qty
51 478-0254 Housing, Main Case supplied as current version 478-0254-002 1
94 793-0377 Cover, Main Case 1
39 427-0464 Gasket, Main Cover 1
32 273-0687 Bracket, Case Lifting 2
27 265-0239 Capscrew, Cover Mtg. 7/16-14 x 1 16
26 265-0238 Bolt, HH 7/16-14 NC x 1 1/4 2
107 927-0749 Washer, Cover Mtg. Screw 7/16 Lock 18
52 626-0228 Label, Serial Plate NLA — call for replacement 1
62 724-0276 Screw, Serial Plate Mtg. Drive 2
80 758-0274 Plug, 3/4 NPT Magnetic Drain 1
79 758-0229 Plug, 3/4 NPT Fill and Level 2
81 758-0293 Plug, 1/2 NPT Return Line Hole 1

[/fusion_text][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container][fusion_builder_container hundred_percent=”no” hundred_percent_height=”no” hundred_percent_height_scroll=”no” hundred_percent_height_center_content=”yes” equal_height_columns=”no” menu_anchor=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” status=”published” publish_date=”” class=”” id=”” background_color=”#f7f7f7″ background_image=”” background_position=”center center” background_repeat=”no-repeat” fade=”no” background_parallax=”none” enable_mobile=”no” parallax_speed=”0.3″ video_mp4=”” video_webm=”” video_ogv=”” video_url=”” video_aspect_ratio=”16:9″ video_loop=”yes” video_mute=”yes” video_preview_image=”” border_color=”” border_style=”solid” margin_top=”” margin_bottom=”” padding_top=”40″ padding_right=”” padding_bottom=”50″ padding_left=”” type=”legacy”][fusion_builder_row][fusion_builder_column type=”1_1″ layout=”1_1″ spacing=”” center_content=”no” link=”” target=”_self” min_height=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” background_color=”” background_image=”” background_image_id=”” background_position=”left top” background_repeat=”no-repeat” hover_type=”none” border_color=”” border_style=”solid” border_position=”all” padding_top=”” padding_right=”” padding_bottom=”” padding_left=”” margin_top=”” margin_bottom=”” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” last=”true” border_sizes_top=”0″ border_sizes_bottom=”0″ border_sizes_left=”0″ border_sizes_right=”0″ first=”true” type=”1_1″][fusion_imageframe image_id=”13884|full” max_width=”” style_type=”” blur=”” stylecolor=”” hover_type=”none” bordersize=”” bordercolor=”” borderradius=”” align=”center” lightbox=”no” gallery_id=”” lightbox_image=”” lightbox_image_id=”” alt=”transmission warranty” link=”” linktarget=”_self” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=””]https://fabcotransfercase.com/wp-content/uploads/warranty-seal.png[/fusion_imageframe][fusion_separator style_type=”default” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” sep_color=”#0038a0″ top_margin=”” bottom_margin=”” border_size=”” icon=”” icon_circle=”” icon_circle_color=”” width=”18%” alignment=”center” /][fusion_text columns=”” column_min_width=”” column_spacing=”” rule_style=”default” rule_size=”” rule_color=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=””]

All Fabco transfer cases rebuilt by Pro Gear are covered with a one year, unlimited mileage warranty. *See

warranty. All other warranties are that of the manufacturer.

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