Humphreys Hitch and Trailer Parts

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#13G-#13D Torflex® AXLE SPECIFICATIONS

Suspension:

Features an independent suspension cushioned with rubber, providing a smooth, quiet ride with no transfer of road shock from one wheel to the other. (No springs required)

Bolt Pattern Options:

  • 8 on 6 1/2"

Brake Options:

#13G (10K GD):
  • 12 1/4" x 3 3/8" Electric
  • 12 1/4" x 3/38" Hydraulic (Duo-Servo Standard Optional Uni-Servo) With or without Parking Feature.
  • Hydraulic Disc
  • ABS Equipped options for hydraulic brakes

#13D (10K HD):
  • 12 1/4" x 4" Electric
  • 12 1/4" x 4" Hydraulic (Duo-Servo Standard Optional Uni-Servo) With or without Parking Feature.
  • Hydraulic Disc
  • ABS Equipped options for hydraulic brakes

Spindles:

#13G: 387A Inner and 25580 Outer Bearings
#13D: 395S Inner and 387A Outer Bearings

Tubing:

  • 3.88" OD Square

Lubrication:

  • Oil Bath
#13D-13G Torflex® MOUNTING DETAILS
Dexter #9 Torflex Hubface and Mounting Brackets
Difference between hubface and outside mounting brackets
Minimum
10K GD: 20.22" (10.11" per side)*
10K HD: 24.50" (12.25" per side)
Maximum
34.40" (17.2" per side)
*10K GD (#13G) if for SINGLE WHEEL only!
NOTE" Minimums are based on manufacturing tolerances only. Some tire and wheel combinations may create interference.
Full Load Dimensions
Dimensions are for low profile, top mount only. Side mount is .31" higher. Allow 3" bump clearance from full load.
Dexter Torflex Axle Full Load Dimensions
Dexter Torflex Axle Full Load Dimensions
Dexter Torflex Axle Full Load Dimensions
H=Center Line of Spindle to top of bracket. B=Top of bracket to ground. C=Top of bracket to top of tire.
D=Center Line of spindle to ground. E=Center Line of spindle to top of tire.
Start Angle
 
45° Down
22.5° Down
10° Down
10° Up
22.5° Up
 
Tire
H
B
C
H
B
C
H
B
C
H
B
C
H
B
C
H
B
C
D
E
10R17.5 HC
5.2
20.2
13.4
2.9
17.9
15.7
1.6
16.6
17.0
0.6
15.6
18.0
-0.3
14.6
18.9
-1.3
13.6
19.9
15.6
18.0
215/75R 17.5
5.2
18.6
10.8
2.9
16.3
13.1
1.6
15.0
14.4
0.6
14.0
15.4
-0.3
13.0
16.3
-1.3
12.0
17.3
14.0
15.3
12-16.5 LT
5.2
19.5
11.3
2.9
17.2
13.6
1.6
15.9
14.9
0.6
14.9
15.9
-0.3
13.9
16.8
-1.3
12.9
17.8
14.9
15.8
9.50-16.5 LT
5.2
18.7
10.6
2.9
16.4
12.9
1.6
15.1
14.2
0.6
14.1
15.2
-0.3
13.1
16.1
-1.3
12.1
17.1
14.1
15.2
9R 17.5 HC
5.2
20.0
12.5
2.9
17.7
14.8
1.6
16.4
16.1
0.6
15.4
17.1
-0.3
14.4
18.0
-1.3
13.4
19.0
15.4
17.1
Start Angle
 
45° Down
 
Tire
H
B
C
D
E
10R17.5 HC
5.2
20.2
13.4
15.6
18.0
215/R 17.5
5.2
18.6
10.8
14.0
15.3
12-16.5 LT
5.2
19.5
11.3
14.9
15.8
9.50-16.5 LT
5.2
18.7
10.6
14.1
15.2
9R 17.5 HC
5.2
20.0
12.5
15.4
17.1
 
22.5° Down
 
Tire
H
B
C
D
E
10R17.5 HC
2.9
17.9
15.7
15.6
18.0
215/75R 17.5
2.9
16.3
13.1
14.0
15.3
12-16.5 LT
2.9
17.2
13.6
14.9
15.8
9.50 16.5 LT
2.9
16.4
12.9
14.1
15.2
9R 17.5 HC
2.9
17.7
14.8
15.4
17.1
 
10° Down
 
Tire
H
B
C
D
E
10R17.5 HC
1.6
16.6
17.0
15.6
18.0
215/75R 17.5
1.6
15.0
14.4
14.0
15.3
12-16.5 LT
1.6
15.9
14.9
14.9
15.8
9.50-16.5 LT
1.6
15.1
14.2
14.1
15.2
9R 17.5 HC
1.6
16.4
16.1
15.4
17.1
 
 
Tire
H
B
C
D
E
10R17.5 HC
0.6
15.6
18.0
15.6
18.0
215/75R 17.5
0.6
14.0
15.4
14.0
15.3
12-16.5 LT
0.6
14.9
15.9
14.9
15.8
9.50-16.5 LT
0.6
14.1
15.2
14.1
15.2
9R 17.5 HC
0.6
15.4
17.1
15.4
17.1
 
10° Up
 
Tire
H
B
C
D
E
10R17.5 HC
-0.3
14.6
18.9
15.6
18.0
215/75R 17.5
-0.3
13.0
16.3
14.0
15.3
12-16.5 LT
-0.3
13.9
16.8
14.9
15.8
9.50-16.5 LT
-0.3
13.1
16.1
14.1
15.2
9R 17.5 HC
-0.3
14.4
18.0
15.4
17.1
 
22.5° Up
 
Tire
H
B
C
D
E
10R175 HC
-1.3
13.6
19.9
15.6
18.0
215/75R 17.5
-1.3
12.0
17.3
14.0
15.3
12-16.5 LT
-1.3
12.9
17.8
14.9
15.8
9.50-16.5 LT
-1.3
12.1
17.1
14.1
15.2
9R 17.5 HC
-1.3
13.4
19.0
15.4
17.1
ARTICULATION DIMENSIONS
ALLOW 3" BUMP CLEARANCE FROM FULL LOAD.
Positive numbers indicate spindle is below the top of the bracket, negative numbers are above.
Dexter Torflex #13G-#13D Axle 0 Degree Articulation Dimensions
Dexter Torflex #13G-#13D Axle 10 Degree Up Articulation Dimensions
Dexter Torflex #13G-#13D Axle 22.5 Degree Up Articulation Dimensions
Dexter Torflex #13G-#13D Axle 10 Degree Down Articulation Dimensions
Dexter Torflex #13G-#13D Axle 22.5 Degree Down Articulation Dimensions
Dexter Torflex #13G-#13D Axle 45 Degree Down Articulation Dimensions
*Top of bracket