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Bolt-In 1947-54 Chevy Pickup Mustang II Crossmember
Bolt-In 1947-54 Chevy Pickup Mustang II Crossmember

Bolt-In 1947-54 Chevy Pickup Mustang II Crossmember

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Bolt-In 1947-54 Chevy Pickup Mustang II Crossmember
Bolt-In 1947-54 Chevy Pickup Mustang II Crossmember
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Part # UP88772
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Important Messages:

  • This product is discontinued.
  • This item ships directly from the manufacturer. It may take an additional business days for Speedway Motors to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.
  • This item UP88772 is made to order. It will be shipped from our warehouse when it is produced.



This is garage sale priced because it was beat up in shipping and may be missing hardware.

No Warranty, No Returns on Garage Sale Items    


As featured on Classic Truck’s Week to Wicked. Watch the transformation here!

Our bolt-in Mustang II suspension kit for 1947-1954 Chevy half-ton and 3/4 ton pickups includes all hardware and instructions. 

  • Completely bolt in - no welding required
  • Based on proven Mustang II geometry
  • Complete with bolt in boxing plates to reinforce the frame
  • Interlocking design for ultimate strength
  • Threaded adjusters to fine tune ride height
  • Full lower A-arms required with this crossmember (strutless type)
  • Requires the use of a power rack and pinion and tubular control arms
  • NOT for use with air ride

910-44754 Instructions (PDF)

Parts List (PDF)

Note:  Use bolt-in motor mount kit 910-54754 to mount your S/B Chevy.


This bolt in unit is ONLY made to fit a 47-54 Chevy 1/2 ton and 3/4 Pickup chassis. Inside dimension at axle centerline is 23-1/2", outside is 28". This frame is slightly tapered to the front. Standard MII spindles will set pin at 1/2" below frame rail and 2" drop will set it at 1-1/2" above. Track width is standard 56-1/2" depending on which brake kit is used.


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Includes crossmember, spring towers, threaded adjusters, and mounting plates.
Some parts are not legal for use in California or other states with similar laws/regulations

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