Free ground shipping on all driveshafts and orders over $100 within the continental USA! 
Precision in Action Since 1975 - Celebrating 50 Years!

{"id":8975982461155,"title":"FAST-SHAFT - Inter-Axle Driveshaft - Short Couple, SPL170 Series, 21 Inch","handle":"170sc55002c","description":"\u003ch2\u003eFAST-SHAFT \u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eInter-Axle Driveshafts for Class 8 Semi Trucks\u003c\/span\u003e \u003c\/h2\u003e\n\u003ch3\u003eF\u003cspan\u003eREE Ground Shipping in the USA\u003cbr\u003e\u003ci\u003e(Not eligible for international shipping)\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eKeep your fleet moving with Action Machine’s Fast-Shaft Inter-axle Driveshafts. Built with premium components, each shaft is assembled, balanced, and ready to install. With a 1–3 business day ship time, you’ll be back on the road faster, no costly downtime. Proudly manufactured in the USA.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan\u003eSpecifications:\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"height: 270.719px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eDriveshaft Style:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eShort Couple\u003c\/span\u003e\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 94.375px;\"\u003e\n\u003ctd style=\"height: 94.375px;\"\u003e\u003cstrong\u003eU-Joints:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 94.375px;\"\u003e\n\u003cp\u003eSpicer\/Dana SPL170 Series \u003cbr\u003eGreaseable\u003ca title=\"U-Joint Measuring Guide\" href=\"https:\/\/actionmachineinc.myshopify.com\/pages\/finding-u-joint-series\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003eU-Joint Size: 2.165 Inch Cap X 6.456 Inch Span\u003cbr\u003e\u003ca rel=\"noopener\" title=\"Spring Tab and Outside Snap Ring U-Joint Series Measuring Guide\" href=\"https:\/\/www.actionmachineinc.com\/pages\/spring-tab-style-u-joint-identifier\" target=\"_blank\"\u003e(Measuring Guide - U-Joint)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eU-Joint Style:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eSPL170 \/ Spring Tab\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eAverage Driveshaft Length:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e21.00 Inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eSlip \u0026amp; Spline Travel:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e+\/- 2.75 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eCollapsed Length:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e18.25 Inches (463.55 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eMax Extended Length:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e23.75 Inches \u003cmeta charset=\"utf-8\"\u003e(603.25 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e8 Bolts (5007417)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003ePhasing:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eDriveshaft is in phase (yoke ears in-line)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eShort Couple Driveshaft – SPL170 Series\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eThis driveshaft is engineered with SPL170 series full round U-joints at both the front and rear ends, ensuring strength and durability in heavy-duty applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003eSlip \u0026amp; Spline Travel: 5.5 Inches\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003eCollapsed Length: 18.25 Inches\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003eExtended Length: 23.75 Inches\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eEvery driveshaft ships fully assembled and dynamically balanced for smooth operation and long service life. Installation is straightforward, simply bolt in the SPL170 series U-joints, and you’re ready to roll.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eIf you have any questions we are here to help:\u003cbr\u003e \u003ca href=\"https:\/\/m.me\/126080680780625?ref=messenger_commerce_1163199097047119_https:\/\/actionmachineinc.myshopify.com\/collections\/step-2-slip-yokes?_sc=1\u0026amp;design_theme_id=169352453\u0026amp;frame_token=M_N5SwVtMVwJVnoWROpsibpht2k2_W8cadlvVAJ0kej_vX_Kn1ZeTiXa9q1gt0_QsQQBNTSagPD0jTIUAGNvWcgHdpxZLlBDrXx0QjFkCDdGrNxRamwV7l-GVSbjpuuoiaDEFMvvgL5EMsWwP1LiKA%3D%3D\"\u003e CHAT\u003c\/a\u003e | PHONE \u003ca href=\"tel:574-287-9650\"\u003e(574)287-9650\u003c\/a\u003e | \u003ca title=\"Contact Information for Action Machine Inc.\" href=\"https:\/\/www.actionmachineinc.com\/pages\/contact-us\" target=\"_blank\"\u003eCONTACT US\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eFREE GROUND SHIPPING INSIDE THE USA\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e(This product does not qualify for international shipping) \u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eAlternate Part Number:\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eSpicer 170SC55002C\u003cmeta charset=\"utf-8\"\u003e Inter-Axle Driveshaft\u003cbr\u003eAMI SPL170SC21 Inter-Axle Driveshaft\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e","published_at":"2025-09-25T09:04:45-04:00","created_at":"2025-09-24T16:11:06-04:00","vendor":"Action Machine Inc.","type":"Fast Shaft","tags":["Average CL-CL_19.5-22.5\"","Average Length_19.5-22.5\" CL-CL","Brand_Action Machine Inc.","Delay_1 to 3 Business Days","Driveshaft Location_Inter-Axle","Driveshaft Type_Short Couple","FastShaft","Part_Driveshaft","Steel Driveshaft","U-Joint Series_SPL170","U-Joint Size_2.165\" Cap x 6.456\" Span","U-Joint Type_Spring Tab"],"price":166783,"price_min":166783,"price_max":166783,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":47203382624483,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"170SC55002C_AMI","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"FAST-SHAFT - Inter-Axle Driveshaft - Short Couple, SPL170 Series, 21 Inch","public_title":null,"options":["Default Title"],"price":166783,"weight":16783,"compare_at_price":null,"inventory_quantity":-1,"inventory_management":null,"inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/www.actionmachineinc.com\/cdn\/shop\/files\/ScreenShot2025-09-16at3.49.07PM.png?v=1758744832","\/\/www.actionmachineinc.com\/cdn\/shop\/files\/ScreenShot2025-09-16at3.48.47PM.png?v=1758744819"],"featured_image":"\/\/www.actionmachineinc.com\/cdn\/shop\/files\/ScreenShot2025-09-16at3.49.07PM.png?v=1758744832","options":["Title"],"media":[{"alt":null,"id":37336222335203,"position":1,"preview_image":{"aspect_ratio":1.002,"height":1910,"width":1914,"src":"\/\/www.actionmachineinc.com\/cdn\/shop\/files\/ScreenShot2025-09-16at3.49.07PM.png?v=1758744832"},"aspect_ratio":1.002,"height":1910,"media_type":"image","src":"\/\/www.actionmachineinc.com\/cdn\/shop\/files\/ScreenShot2025-09-16at3.49.07PM.png?v=1758744832","width":1914},{"alt":null,"id":37336222302435,"position":2,"preview_image":{"aspect_ratio":0.998,"height":1916,"width":1912,"src":"\/\/www.actionmachineinc.com\/cdn\/shop\/files\/ScreenShot2025-09-16at3.48.47PM.png?v=1758744819"},"aspect_ratio":0.998,"height":1916,"media_type":"image","src":"\/\/www.actionmachineinc.com\/cdn\/shop\/files\/ScreenShot2025-09-16at3.48.47PM.png?v=1758744819","width":1912}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch2\u003eFAST-SHAFT \u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eInter-Axle Driveshafts for Class 8 Semi Trucks\u003c\/span\u003e \u003c\/h2\u003e\n\u003ch3\u003eF\u003cspan\u003eREE Ground Shipping in the USA\u003cbr\u003e\u003ci\u003e(Not eligible for international shipping)\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eKeep your fleet moving with Action Machine’s Fast-Shaft Inter-axle Driveshafts. Built with premium components, each shaft is assembled, balanced, and ready to install. With a 1–3 business day ship time, you’ll be back on the road faster, no costly downtime. Proudly manufactured in the USA.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\"\u003e\u003cspan\u003eSpecifications:\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"height: 270.719px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eDriveshaft Style:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eShort Couple\u003c\/span\u003e\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 94.375px;\"\u003e\n\u003ctd style=\"height: 94.375px;\"\u003e\u003cstrong\u003eU-Joints:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 94.375px;\"\u003e\n\u003cp\u003eSpicer\/Dana SPL170 Series \u003cbr\u003eGreaseable\u003ca title=\"U-Joint Measuring Guide\" href=\"https:\/\/actionmachineinc.myshopify.com\/pages\/finding-u-joint-series\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003eU-Joint Size: 2.165 Inch Cap X 6.456 Inch Span\u003cbr\u003e\u003ca rel=\"noopener\" title=\"Spring Tab and Outside Snap Ring U-Joint Series Measuring Guide\" href=\"https:\/\/www.actionmachineinc.com\/pages\/spring-tab-style-u-joint-identifier\" target=\"_blank\"\u003e(Measuring Guide - U-Joint)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eU-Joint Style:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eSPL170 \/ Spring Tab\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eAverage Driveshaft Length:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e21.00 Inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eSlip \u0026amp; Spline Travel:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e+\/- 2.75 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eCollapsed Length:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e18.25 Inches (463.55 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eMax Extended Length:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e23.75 Inches \u003cmeta charset=\"utf-8\"\u003e(603.25 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e8 Bolts (5007417)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003ePhasing:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eDriveshaft is in phase (yoke ears in-line)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eShort Couple Driveshaft – SPL170 Series\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eThis driveshaft is engineered with SPL170 series full round U-joints at both the front and rear ends, ensuring strength and durability in heavy-duty applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003eSlip \u0026amp; Spline Travel: 5.5 Inches\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003eCollapsed Length: 18.25 Inches\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003eExtended Length: 23.75 Inches\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eEvery driveshaft ships fully assembled and dynamically balanced for smooth operation and long service life. Installation is straightforward, simply bolt in the SPL170 series U-joints, and you’re ready to roll.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eIf you have any questions we are here to help:\u003cbr\u003e \u003ca href=\"https:\/\/m.me\/126080680780625?ref=messenger_commerce_1163199097047119_https:\/\/actionmachineinc.myshopify.com\/collections\/step-2-slip-yokes?_sc=1\u0026amp;design_theme_id=169352453\u0026amp;frame_token=M_N5SwVtMVwJVnoWROpsibpht2k2_W8cadlvVAJ0kej_vX_Kn1ZeTiXa9q1gt0_QsQQBNTSagPD0jTIUAGNvWcgHdpxZLlBDrXx0QjFkCDdGrNxRamwV7l-GVSbjpuuoiaDEFMvvgL5EMsWwP1LiKA%3D%3D\"\u003e CHAT\u003c\/a\u003e | PHONE \u003ca href=\"tel:574-287-9650\"\u003e(574)287-9650\u003c\/a\u003e | \u003ca title=\"Contact Information for Action Machine Inc.\" href=\"https:\/\/www.actionmachineinc.com\/pages\/contact-us\" target=\"_blank\"\u003eCONTACT US\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eFREE GROUND SHIPPING INSIDE THE USA\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003e(This product does not qualify for international shipping) \u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eAlternate Part Number:\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eSpicer 170SC55002C\u003cmeta charset=\"utf-8\"\u003e Inter-Axle Driveshaft\u003cbr\u003eAMI SPL170SC21 Inter-Axle Driveshaft\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e"}

FAST-SHAFT - Inter-Axle Driveshaft - Short Couple, SPL170 Series, 21 Inch

Vendor: Action Machine Inc., Sku: 170SC55002C_AMI

Product Description

FAST-SHAFT
Inter-Axle Driveshafts for Class 8 Semi Trucks 

FREE Ground Shipping in the USA
(Not eligible for international shipping)

Keep your fleet moving with Action Machine’s Fast-Shaft Inter-axle Driveshafts. Built with premium components, each shaft is assembled, balanced, and ready to install. With a 1–3 business day ship time, you’ll be back on the road faster, no costly downtime. Proudly manufactured in the USA.

Specifications:

Driveshaft Style: Short Couple
U-Joints:

Spicer/Dana SPL170 Series 
Greaseable
U-Joint Size: 2.165 Inch Cap X 6.456 Inch Span
(Measuring Guide - U-Joint)

U-Joint Style: SPL170 / Spring Tab
Average Driveshaft Length: 21.00 Inches
Slip & Spline Travel: +/- 2.75 Inch
Collapsed Length: 18.25 Inches (463.55 mm)
Max Extended Length: 23.75 Inches (603.25 mm)
Hardware: 8 Bolts (5007417)
Phasing: Driveshaft is in phase (yoke ears in-line)


Short Couple Driveshaft – SPL170 Series

 This driveshaft is engineered with SPL170 series full round U-joints at both the front and rear ends, ensuring strength and durability in heavy-duty applications.

  • Slip & Spline Travel: 5.5 Inches
  • Collapsed Length: 18.25 Inches
  • Extended Length: 23.75 Inches

Every driveshaft ships fully assembled and dynamically balanced for smooth operation and long service life. Installation is straightforward, simply bolt in the SPL170 series U-joints, and you’re ready to roll.


If you have any questions we are here to help:
  CHAT | PHONE (574)287-9650 | CONTACT US


FREE GROUND SHIPPING INSIDE THE USA
(This product does not qualify for international shipping) 


Alternate Part Number:
Spicer 170SC55002C Inter-Axle Driveshaft
AMI SPL170SC21 Inter-Axle Driveshaft

Sku: 170SC55002C_AMI

All driveshafts are custom built to your specification. Current lead time is 1-3 business days from time of order.

$1,667.83
Maximum quantity available reached.
.

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