Ford Transmission Main Drive Gear Types

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Typical for 1928 to 1948

 

Part Number

A

B

C

D

Length

Number of Splines

Number of Teeth

Number of Teeth
A-7017-A *   9.56" 6 16 ---
A-7017-B *   9.50" 10 16 ---
B-7017 **   8.27" 10 16 30
BB-7017-A *   7.78" 10 17 ---
BB-7017-B * 10.31" 10 17 ---
48-7017 **   8.27" 10 16 30
67-7017 **   8.27" 10 14 30
70-7017-A **    7.14" 10 21 ---
74-7017 **   7.68" 10 15 24
81A-7017 **   8.25" 10 16   (2.35" diameter) 30
8M-7017 **  8.25" 10 16   (2.35" diameter) 30
022A-7017 **   8.20" 10 15 30
11Y-7017 **   8.20" 10 14 30
1C-7017  **   8.20" 10 16  (2.45" diameter) 30
   * Spur teeth                 ** Helical teeth
Part Number Part Name Trans Speeds Engine Passenger Comm 1/2 Ton  1 Ton Truck
Cyl HP Year Year Year Year Year
  A-7017-A
 Drive Gear 16 tooth spur type - 9.56" long. Use with A7113 for multiple disc clutch 3 4 40 28      28          28     
  A-7017-B
 Drive Gear 16 tooth spur type - 9.50" long. Use with A7113 for single disc clutch 3 4 40 28-31 28-31     28-29
B-7017 Drive Gear 16 tooth helical - 8.27" long. Replaced by 48-7017 3 All All 32-34 32-34      
BB-7017-A
 Drive Gear 17 tooth spur type - 7.78" long. Use with BB7113A (except 1933-34  8 cyl) 4 All All   39-47 39-47 39-47 29-47
BB-7017-B Drive Gear 17 tooth spur type - 10.31" long. Use with BB7113A 4 8 90         33-34
48-7017    Drive Gear 16 tooth helical - 8.27" long. Use with B7113, 48-7113, 68-7113A or 51A7113 3
3
3		 4
8
8		 40
90
100		 32-34
32-39
---		 32-34
32-39
39      		     
67-7017    Drive Gear 14 tooth helical - 8.27" long. Use with 67-7113A 3
3
3		 8
8
8		 90
100
60		   36-40
39-40
37-40		 39-40
39-40
39-40		 38-40
39-40
38-40		  
70-7017-A*
 Drive Gear 21 tooth helical - 7.14" long. Use with 70-7113B and 70-7105 3 All All   38-42 39-42 38-42  
74-7017  
  		Drive Gear 15 tooth helical - 7.68" long. Use with 74-7112A, 74-7113A, 74-7113C, 74-7113D 3 8 60 37-39        
81A-7017 

  

 Drive Gear 16 tooth helical - 8.25" long. Use with 68-7113A, 51A7113, 8M7113. Interchangeable with 8M-7017 gear.

 

 3
3
3
3
3		 8
8
8
4
6		 90
100
60
40
90		 40-42
39-48
40     
---
41-48		 40-42
39-47
---
41     
41-47		      
8M-7017 Drive Gear 16 tooth helical - 8.25" long. Use with 68-7113A, 51A7113, 8M7113. Interchangeable with 81A-7017 gear. 3
3
3
3
3		 8
8
8
4
6		 90
100
60
40
90		 40-42
39-48
40     
---
41-48		 40-42
39-47
---
41     
41-47		      
 022A-7017  

 

 Drive Gear - 15 tooth helical - 8.20" long. Use with 022A7113A or 21C7113

 

 3
3
3
3
3		 8
8
8
4
6		 90
100
60
40
90		 40-42
39-48
40     
---
41-48		 40-42
39-47
---
41     
41-47		      
11Y-7017  

 

 Drive Gear 14 tooth helical - 8.20" long. Use with 67-7113A

 

 3
3
3
3		 8
8
6
4		 90
100
90
40		   41    
41    
41    
41-42		 41-42
41-47
41-47
41-42		 41-42
41-47
41-47
41-42		  
1C-7017 Drive Gear 16 tooth helical - 8.20" long. Use with 1A-7113 3 8
6		 100   51-52 51-52    
   * Bus Type Transmission

The following part numbers were referenced in the above chart

Part Number Description
7105 Hub (Transmission Intermediate & HIgh Clutch)
7112 Countershaft Cluster Gear
7113 Countershaft Cluster Gear

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