Through Shaft
Also called: Thru Shaft · Double Differential Through Shaft · Inter-Axle Through Shaft
The through shaft (thru shaft) is used in double differential (tandem axle) trucks. It passes through the forward rear axle and carries the drive on towards the second rear axle. It has splines at both ends. To match a part, check both spline counts (for example 34 X 32) and the axle type (Meritor or Spicer).
Looking for a different part? See also:
Photos: Through Shaft / Thru Shaft

- Splines34X32
Fits: MERITOR TYPE-34X32 SPLINES
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- Splines26X35
Fits: SPICER TYPE-26X35 SPLINES
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- Splines39X20

- Splines39X34
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Specification table – all 4 part numbers
| Part number | Vehicles |
|---|---|
| WTS 26001T | MERITOR TYPE-34X32 SPLINES |
| WTS 26020T | SPICER TYPE-26X35 SPLINES |
| WTS 26030T | |
| WTS 26040T |
Guides
- Propeller Shafts For Indian Commercial Trucks: A Fitment Guide
- Splines 101: Why Profile and Count Actually Matter
Questions
- What is a Through Shaft / Thru Shaft?
- The through shaft (thru shaft) is used in double differential (tandem axle) trucks. It passes through the forward rear axle and carries the drive on towards the second rear axle. It has splines at both ends. To match a part, check both spline counts (for example 34 X 32) and the axle type (Meritor or Spicer).
- What other names is a Through Shaft / Thru Shaft sold under?
- The same part is also called: Thru Shaft, Double Differential Through Shaft, Inter-Axle Through Shaft.
- How many Through Shaft / Thru Shaft part numbers does MMW make?
- Our printed catalogue lists 4 Through Shaft part numbers. All of them are on this page with photos, sizes and vehicle fitment.
- How do I order a Through Shaft / Thru Shaft from MMW?
- Send the part number, a photo of your old part, or your vehicle model on WhatsApp +91 95607 49756. We confirm the price and stock, then pack and dispatch from Delhi. Wholesale and export orders are welcome.
More From Our Catalogue

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Send us the part number, a photo of your old part, or the vehicle model on WhatsApp. We will find the right part and send the price.
