Model T4
Borg-Warner 4-Speed Transmission

Item numbers match the diagram. Each part number searches Amazon for that Crown part.
| Item # | Description | Comments | Part No. |
|---|---|---|---|
| 1 | Gear, Reverse Idler | J8134038 | |
| 2 | Shaft, Reverse Idler | J8134039* | |
| 3 | Bearing, Cluster Gear | Front | J8134033* |
| 4 | Thrust Washer, Cluster Gear | Front | J8134032 |
| 5 | Cluster Gear |
37-34-23-15-14 Teeth 37-32-23-15-14 Teeth |
J8134031* 83500970 |
| 6 | Cluster Gear Kit | Incl. 27T 3rd Gear and Cluster Gear | 83500970K |
| 7 | Spacer, Cluster Gear Bearing | J8134035 | |
| 8 | Bearing, Cluster Gear | Rear | J8134036 |
| 9 | Bearing, Cluster Gear | Needle Thrust Bearing | J8134034 |
| 10 | Race, Cluster Gear Thrust | J8134037 | |
| 11 | Seal, Output | J8132672 | |
| 12 | Switch, Back Up Lamp | J8134068 | |
| 13 | Retainer, Bearing | Front | J8134013 |
| 14 | Seal, Input | J8132779 | |
| 15 | Shim Set, Input Bearing | J8134016 | |
| 16 | Bearing, Input Shaft | Front | J8134015 |
| 17 | Shaft, Input |
10 Spline 14 Spline |
83500975 83500968 |
| 18 | Bearing, Input Shaft | Needle Bearing; 15 Required | J8127397 |
| 19 | Bearing, Thrust | J8134018 | |
| 20 | Washer, Thrust Bearing | J8134170 | |
| 21 | Gear, 3rd |
29 Teeth 27 Teeth |
83500285 83500380 |
| 22 | Snap Ring, Main Shaft | J8127424 | |
| 23 | Washer, Thrust | J8134025 | |
| 24 | Gear, 2nd | J8134024* | |
| 25 | Main Shaft Assembly |
w/o Needle Roller 1st Gear w/ Needle Roller 1st Gear |
83501166 83500963* |
| 26 | Blocking Ring Set | 1st and 2nd; Includes 2 Rings | J8127403 |
| 27 | Plate, Synchronizer | 2nd Gear; 3 Required | J8127401 |
| 28 | Spring, Synchronizer | 4 Required | J8134021 |
| 29 | Slider | 1st and Reverse | 1351070002 |
| 30 | Needle Bearing, 1st Gear | 84/86 | 83500969 |
| 31 | Gear, 1st |
Used w/o Needle Rollers Used w/ Needle Rollers |
83501103* 83500965* |
| 32 | Washer, Thrust | 83500964 | |
| 33 | Bearing, Output Shaft | J8134030 | |
| 34 | Synchronizer Assembly | 3rd and 4th | 83510192* |
| 35 | Blocking Ring Set | 3rd and 4th; Includes 2 Rings | J8134058 |
| 36 | Plate, Synchronizer |
3rd and 4th; Late Style, 3 Required 3rd and 4th; Early Style, 3 Required |
83510193 J8127418 |
| 37 | Plug, Shift Rail | J8127473 | |
| 38 | Insert, Shift Fork | J8133418 | |
| 39 | Fork, Shift | 3rd and 4th | J8134048 |
| 40 | Fork, Shift | 1st and 2nd | J8134049* |
| 41 | Boot, Shifter | J8134064 | |
| 42 | Sleeve, Shifter | 83502930 | |
| 43 | Pin, Shift Lever | J8134040 | |
| 44 | Ball, Chrome | 453593 | |
| 45 | Insert, Shift Knob | J3241067 | |
| 46 | Knob, Shift | J3241062 | |
| 47 | Nut, Shift Control | J4006495 | |
| 48 | Boot, Shifter | J5752010 | |
| 49 | Clip, Shift Lever | J3241239 | |
| 50 | Isolator, Shift Lever | J3241481 | |
| 51 | Shift Knob Kit | 3241067K | |
| 52 | RTV Silicone Sealant | J8993317 | |
| 53 | Gasket and Seal Kit | Includes Front and Rear Seals and RTV | T4T5GS |
| 54 | Small Parts Kit | Includes Bearings, Pins, Snap Rings, Shims, Plugs and Spacers | T450 |
| 55 | Master Small Parts Kit | Includes #s 27, 28, 36, 54 | T450MK |
| 56 | Master Overhaul Kit | Includes #s 26, 27, 28, 35, 36, 57 | T4MASKIT |
| 57 | Master Bearing Kit | Includes Bearings, Seals, and Small Parts Kit | BKT4M |
Note: Early Style Synchronizer Plates Do Not Have Wings
Late Style Synchronizer Plates Have 2 Wings Per Plate
* Not Currently Available