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Fabco TC-28 Transfer Case Parts List — Every Part Number, In Stock Online

This is the complete factory parts manual for the Fabco TC-28 transfer case (publication 625-0551 Rev. A) — all eight exploded-view figures and their parts lists: the main housing, the bearing caps and carriers with the electric shift motors, the input, intermediate, rear axle output and front axle output shafts, and both shift shafts (high/low engagement and front axle engagement). That is 80 distinct Fabco part numbers, and every one of them links to that exact part at Pro Gear & Transmission, Fabco’s authorized distributor. Item numbers are scoped to each figure, so read the item number off the drawing and look it up in the table directly beneath it. Check the Fabco 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 — call and we’ll source or rebuild.

TC-28 parts manual (PDF)

Download the free interactive TC-28 Parts Manual (PDF) — every part number is clickable and buyable, the numbered callouts on all eight exploded-view drawings jump straight to their row in the parts list, and each in-stock row carries a blue Add-to-Cart arrow. The original factory book and the TC-28 Service Manual are free too. More models on our Fabco manuals page, and full model info, pricing and FAQs on the TC-28 transfer case page.

Need TC-28 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.

Main Housing and Related Parts

Manual page 5 — exploded view on the facing page.

Item Fabco Part # Description Qty
16 235-0736 Cap, Intermediate, Vent 1
19 235-0738 Cap, Plate NLA — call for replacement 1
19B 756-0372 Ring, Cap, Spacer 1
21 237-0749 Carrier, Seal, Input 1
22 237-0752 Carrier, Seal, Front Out 1
24 265-0239 Bolt, 7/16-14 x 1, Grade 5, HH 38
26 273-0687 Bracket, Lifting 1
30 427-0339 Gasket, Carrier 3
31 427-0573 Gasket, Cover Plate 1
35 427-0575 Gasket, Intermediate 1
44 478-0377 Housing, Machined 1
50 732-0384 Seal, Oil 2
51 744-0377-001 *Shim, Internal, .002 Thick *
744-0377-002 *Shim, Internal, .005 Thick *
744-0377-003 *Shim, Internal, .015 Thick *
744-0377-004 *Shim, Internal, .030 Thick *
56 758-0229 Plug, 3/4 NPT Square Countersunk 3
63 775-0446 Nut, Hex, Lock, Flanged, M36 x 1.5 2
70 793-0694 Plate, Cover 1
71 798-0366 Switch, Limit, Electric Shift, NC 4
72 836-0223 Vent, Breather, 3/8 NPT 1
74 927-0427 Washer, Copper, Sealing 10
80 964-0364 Yoke, End, SPL 90/100 Series. NLA — call for replacement 1
80A 964-0443 Yoke, End, SPL 55/1480 Series. NLA — call for replacement 1
The following items are not shown on the drawing, for clarity.
37 429-0342 Harness, Electrical, Shift 1
81 255-0468 Clamp, Tyrap, Black 1

*SELECT SHIM COMBINATION TO ACHIEVE .001 TO .005 FLOAT.

Main Housing, Bearing Caps/Carriers and Related Parts

Manual page 7 — exploded view on the facing page.

Item Fabco Part # Description Qty
19 235-0738 Cap, Plate NLA — call for replacement 1
19A 235-1738 Cap, Assembly, Plate 1
19B — Call With Dimensions call 877-776-4600 2
20 235-0763 Cap, Intermediate, Bearing 1
24 265-0239 Bolt, 7/16-14 x 1, Grade 5, HH 16
25 265-0343 Bolt, 1/4-20 x 1/2 Grade 5, HH 2
27 283-0332 Screw, 1/4-20 x 1-3/4, Hex Head, GRD 8 6
30 427-0339 Gasket, Carrier 2
34 427-0574 Gasket, Intermediate 1
46 668-0283 Motor, Shift, Electric, TC-28 2
49 724-0782 Screw, Cap Socket Head, 1/4-20 x 1/2 LG 6
50 732-0384 Seal, Oil 1
57 758-0274 Plug, 3/4 NPT Square Socket Head Magnetic 1
63 775-0446 Nut, Hex, Lock, Flanged, M36x1.5 1
70 793-0697 Plate, Adapter, Motor 2
77 927-0889 Washer, ID 9/32 Dia x OD 1/2 Dia 8
77A 927-0338 Washer, 1/4, Spring Lock (Split) 6
80 964-0364 Yoke, End, SPL 90/100 Series. NLA — call for replacement 1

Input Shaft and Related Parts

Manual page 9 — exploded view on the facing page.

Item Fabco Part # Description Qty
3 233-0598 Bearing Cone 2
4 233-0599 Bearing Cup 2
11 233-0628 Bearing Cone 2
12 233-0629 Bearing Cup 2
38 432-0833 Gear, High Range, 35 Teeth NLA — call for replacement 1
41 432-0837 Gear, Low Range, 19 Teeth 1
43 432-0839 Gear, Clutch 1
55 756-0368-001 Ring, Bearing Spacer, .279 Thick *
756-0368-002 Ring, Bearing Spacer, .282 Thick NLA — call for replacement *
756-0368-003 Ring, Bearing Spacer, .285 Thick NLA — call for replacement *
756-0368-004 Ring, Bearing Spacer, .288 Thick NLA — call for replacement *
756-0368-005 Ring, Bearing Spacer, .291 Thick *
756-0368-006 Ring, Bearing Spacer, .294 Thick *
756-0368-007 Ring, Bearing Spacer, .276 Thick *
756-0368-008 Ring, Bearing Spacer, .273 Thick *
59 762-0345 Ring, Split Retaining 1
64 776-0427 Shaft, Input 1
76 927-0888 Washer, Spacer, TC-28 1

*SELECT SPACER TO ACHIEVE .001 TO .005 SHAFT FLOAT.

Intermediate Shaft and Related Parts

Manual page 11 — exploded view on the facing page.

Item Fabco Part # Description Qty
5 233-0622 Bearing Cone 1
6 233-0623 Bearing Cup 1
7 233-0624 Bearing Cone 1
8 233-0625 Bearing Cup 1
11 233-0628 Bearing Cone 2
12 233-0629 Bearing Cup 2
39 432-0834 Gear, High Range, 34 Teeth NLA — call for replacement 1
42 432-0838 Gear, Low Range, 41 Teeth 1
43 432-0839 Gear, Clutch 1
47 688-0694 Nut, 1 1/2-12, Hex, Self Locking 1
55 756-0368-001 Ring, Bearing Spacer, .279 Thick *
756-0368-002 Ring, Bearing Spacer, .282 Thick NLA — call for replacement *
756-0368-003 Ring, Bearing Spacer, .285 Thick NLA — call for replacement *
756-0368-004 Ring, Bearing Spacer, .288 Thick NLA — call for replacement *
756-0368-005 Ring, Bearing Spacer, .291 Thick *
756-0368-006 Ring, Bearing Spacer, .294 Thick *
756-0368-007 Ring, Bearing Spacer, .276 Thick *
756-0368-008 Ring, Bearing Spacer, .273 Thick *
58 762-0292 Ring, Split Retaining 1
65 776-0435 Shaft, Intermediate 1
75 927-0775-007 Washer, Int. Shaft, Rear 1

*SELECT SPACER TO ACHIEVE .001 TO .005 SHAFT FLOAT.

Rear Axle Output Shaft and Related Parts

Manual page 13 — exploded view on the facing page.

Item Fabco Part # Description Qty
3 233-0598 Bearing Cone 1
4 233-0599 Bearing Cup 1
7 233-0624 Bearing Cone 1
8 233-0625 Bearing Cup 1
40 432-0836 Gear, High Range, 35 Teeth NLA — call for replacement 1
58 762-0292 Ring, Split Retaining 1
66 776-0429 Shaft, Rear Output 1
76 927-0888 Washer, Spacer, TC-28 1

Front Axle Output Shaft and Related Parts

Manual page 15 — exploded view on the facing page.

Item Fabco Part # Description Qty
3 233-0598 Bearing Cone 1
4 233-0599 Bearing Cup 1
6 233-0623 Bearing Cup 1
5 233-0622 Bearing Cone 1
11 233-0628 Bearing Cone 2
12 233-0629 Bearing Cup 2
38 432-0833 Gear, High Range, 35 Teeth NLA — call for replacement 1
43 432-0839 Gear, Clutch 1
55 756-0368-001 Ring, Bearing Spacer, .279 Thick *
756-0368-002 Ring, Bearing Spacer, .282 Thick NLA — call for replacement *
756-0368-003 Ring, Bearing Spacer, .285 Thick NLA — call for replacement *
756-0368-004 Ring, Bearing Spacer, .288 Thick NLA — call for replacement *
756-0368-005 Ring, Bearing Spacer, .291 Thick *
756-0368-006 Ring, Bearing Spacer, .294 Thick *
756-0368-007 Ring, Bearing Spacer, .276 Thick *
756-0368-008 Ring, Bearing Spacer, .273 Thick *
67 776-0432 Shaft, Front Output 1
76 927-0888 Washer, Spacer, TC-28 1

*SELECT SPACER TO ACHIEVE .001 TO .005 SHAFT FLOAT.

Shift Shaft (High/Low Engagement) and Related Parts

Manual page 17 — exploded view on the facing page.

Item Fabco Part # Description Qty
2 226-0249 Cam, Shaft, High-Low Engagement NLA — call for replacement 1
18 235-0753 Cap, Spring, Retainer 2
29 367-0333 Fork, Shift, Machined, High-Low Engage 1
49 724-0782 Screw, Cap Socket Head, 1/4-20 x 1/2 LG 2
53 746-0678 Pin Dowel, .3125 x 1 Standard 2
54 746-0758 Pin, Locking, Cam, Shaft NLA — call for replacement 1
61 769-0532 Shaft, Shift, High-Low Engage 1
68 777-0556 Spring, Shift 1
78 927-0896 Washer, Thrust, Cam, 5/8" I.D. 1
79 927-0897 Washer, Thrust, Cam, 7/8" I.D. 1

Shift Shaft (Front Axle Engagement) and Related Parts

Manual page 19 — exploded view on the facing page.

Item Fabco Part # Description Qty
1 226-0248 Cam, Shaft, Frnt Axle Engagement NLA — call for replacement 1
18 235-0753 Cap, Spring, Retainer 2
28 367-0332 Fork, Shift, Machined, Front Engage 1
49 724-0782 Screw, Cap Socket Head, 1/4-20 x 1/2 LG 2
52 746-0628 Pin Dowel, .3125 x 1.25 Standard 2
54 746-0758 Pin, Locking, Cam, Shaft NLA — call for replacement 1
60 769-0532 Shaft, Shift, Front Engage the book prints 769-0532 for both shift shafts (item 61 is the high/low shaft) — confirm with our parts desk before ordering 1
68 777-0556 Spring, Shift 1
78 927-0896 Washer, Thrust, Cam, 5/8" I.D. 1
79 927-0897 Washer, Thrust, Cam, 7/8" I.D. 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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