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PRO-SHIFT™ 7-Speeds
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The PRO-SHIFTTM 7-Speed transmissions bring you affordability, reliability, and adaptability for work with today's more fuel-efficient diesel engines. Available in both medium- and heavy-duty applications, these proven workhorse transmissions are perfect for a wide variety of jobs -- from city pick-up and delivery to line-haul operations; from car-carrier fleets to truckload and less-than-truckload fleets. |
Features:
- Heavy-duty torque capacities that work with new, higher torque diesels
- Driver-friendly, no-repeat shift patterns
- Low first and reverse gears for smooth startability and controlled backing
- Heavy-duty rolled spline mainshaft for longer life and increased output strength
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How can we assist you with your specific requirements?
If this information is insufficient to select a transmission model, please use this
Medium- and Heavy-Duty Application Engineering Form
to supply your specifications. Our application engineers will be glad to customize and
recommend a model for you. |
To print or download a PDF version of this page, please click here or on the
icon found above each table below.
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Model No. |
Length
(in) |
Weight
(lbs) |
Lube Cap.
(liters) |
Torque Cap.
(lbs-ft) |
Overall
Ratio |
Reverse
Gear |
Gear Ratios |
R1 |
Low Gear |
Top Gear |
PS110-7A |
29.35 |
732 |
22.6 |
1,100 |
10.13 |
10.13 |
10.13 |
1.00 |
PS110-7B |
29.35 |
732 |
22.6 |
1,100 |
12.27 |
12.27 |
12.27 |
1.00 |
PS145-7A |
29.35 |
732 |
22.6 |
1,450 |
10.13 |
10.13 |
10.13 |
1.00 |
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Model No. |
Reverse Gear Ratios |
Gear Ratios |
R1 |
R2 |
R3 |
R4 |
1st |
2nd |
3rd |
4th |
5th |
6th |
7th |
PS110-7A |
10.13 |
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10.13 |
5.99 |
3.56 |
2.57 |
1.84 |
1.33 |
1.00 |
PS110-7B |
12.27 |
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12.27 |
7.00 |
4.13 |
2.54 |
1.84 |
1.33 |
1.00 |
PS145-7A |
10.13 |
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10.13 |
5.99 |
3.56 |
2.57 |
1.84 |
1.33 |
1.00 |
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Model No. |
On-Highway (1) |
Off-Highway |
Off-Shore |
GVW
(lbs) |
Torque
(lbs-ft) |
GVW
(lbs) |
Torque
(lbs-ft) |
GVW
(lbs) |
Torque
(lbs-ft) |
PS110-7A |
80,000 |
1,100 |
(4) |
(4) |
(4) |
(4) |
PS110-7B |
80,000 |
1,100 |
(4) |
(4) |
(4) |
(4) |
PS145-7A |
80,000 |
1,450 |
(4) |
(4) |
(4) |
(4) |
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| Notes: |
| (1) 4x4, 6x6 and/or military applications are considered off-highway. |
| (4) Contact transmission engineering for approvals. |
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Model No. |
Inertia (in-lb-sec2) |
Weight (lbs) |
Center of Gravity (in) |
A |
B |
C |
D |
PS110-7A |
0.75530 |
722 |
15.42 |
0.55 |
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0.04 |
PS110-7B |
0.52298 |
722 |
15.42 |
0.55 |
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0.04 |
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| A. Horizontal Distance from clutch housing pilot diameter to CG. |
B. Vertical Distance below (or above) mainshaft centerline to CG.
[below is positive, above negative] |
| C. Rear view - Horizontal Distance left of mainshaft centerline to CG. |
| D. Rear view - Horizontal Distance right of mainshaft centerline to CG. |
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Model No. |
Gear Speed%
of Engine |
Tooth
Count |
Pitch |
Geometry |
6-Bolt |
Pitch Line
to Aperture
Face |
8-Bolt |
Pitch Line
to Aperture
Face |
PS110-7A |
35 |
56 |
6 |
20 Spur |
Left/Right |
0.668 |
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PS110-7B |
42 |
43 |
5 |
20 Spur |
Left/Right |
0.99 |
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PS145-7A |
42 |
43 |
5 |
20 Spur |
Left/Right |
0.99 |
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Non-Synchronized (PRO-SHIFT Models) |
Temperature |
SAE Grade |
Class/Type |
All |
50 |
Synthetic Transmission Oil
Spicer Specification MS-961-T |
Above 0°F |
50 |
HD Engine Oil
Mil-L-2104D or E
API-CD, CE, SF or SG
Cat TO-4 |
Below 0°F |
30 |
Above 0°F |
80W-90 |
Automotive Gear Oil
API MT-1 |
Below 0°F |
75W |
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| Notes: |
| EP gear oils are not recommended for operating temperatures above 230°F. |
| Do not mix engine, transmission or gear (axle) lubes. |
| Synthetic SAE 50 required for applications above 399 Horsepower. |
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Change Intervals |
Type |
On Highway |
Off Highway |
Mineral |
1 year or 100,000 miles |
Every 1000 Hours |
Semi-synthetic |
2 years or 250,000 miles |
Every 1000 Hours |
Synthetic |
5 years or 500,000 miles |
Every 1000 Hours |
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