Speedway 1941-1948 Ford Mustang II Deluxe Steel Crossmember
Front Position, Mustang II Crossmember Type, Boxed Crossmember Style, Weld-on Attachment Style
- Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
- 1941-1948 Ford passenger car frames
- All Speedway crossmembers come in Deluxe versions (welds ground)
- Constructed of 7-gauge steel
- Mustang II cross members using stock spindles will drop the stock ride height 3-4”
- One-Piece Shock Cups are T.I.G. welded in place and have anti-dive built in.
- Vertical Inner Uprights. This is the strongest design available, with twice the weld area. This will keep your frame from twisting!
- Lower control arm pivot tubes and gussets are NOT included
- Frame Front Boxing Plates are available for added strength/support (91054424)
- Works with both manual or power rack and pinions
Choose from the crossmembers below and add to an IFS kit to get a "hub to hub" front suspension.
Note: Additional items may be needed to complete installation. You may want to include our Mustang II ride height adjusters (91034444) for installation with these crossmembers to fine tune your final ride height up to 2". Frame boxing plates (91054424) are also available for these crossmembers for added strength and support.
Note: When using this crossmember with our "power" steering rack, you may also need (2) rack spacers (9101023). (These spacers are included with our Mustang II suspension kits.)
Item Details1941-48 Ford Car
Complete installation may require you to purchase corresponding a-arms, shocks, springs, brake kit, spindles, and steering rack and pinion
ApplicationNote: The 1948 Mercury, even though sharing the same frame platform, actually has increased frame width in the area of installation of the IFS cross member. Therefore modification and/or alteration of the cross member or pinching the frame rails on the Mercury would be required for successful installation. You may want to consider our universal cross members under part number 413201 or 413202 depending on the actual frame dimension.
NotesOverall Benefit: In a word, "handling". While installing a Mustang II can look like a lot of work, in reality, the improved handling and ride quality are worth the effort. Combine that with improved stopping ability due to numerous brake options and it becomes more a question of “Why wouldn’t you?”. The independent suspension will give you a much better ride because there is double the suspension travel. A stock axle will give you maybe 2-1/2” of total travel vs. a Mustang II which will give you about 4-1/2”- 5” of travel. There are multiple spring rates available to accommodate varied applications and the rack and pinion steering is much more responsive than a standard steering box.
Drop: This varies and is dependent on application and options. Most kits drop the vehicle by 3-4”. Drop spindles and running lower profile tires than stock also adds to the amount of drop that can be achieved.
Track Width: You may want to mount custom wheels to your Mustang II conversion and determining proper track width for your application is essential for figuring correct backspacing and overall ride stance. Standard wheel base is 56-1/2” with a 60” version available for trucks. The various options for brake kits will vary this somewhat and some kits can add roughly 2” to the overall track width. Narrowed arms are available to move the wheel in by 5/8” on each side. See the link below for various track widths with different options.
Assembly Notes: Either manual or power steering can be used with these crossmembers. The passenger side mount has a slot that will take the later model power rack. With all Mustang II aftermarket crossmembers, spacers and longer bolts must be used with the later (Fox-body) power rack.
Rack mounts are incorporated into the crossmember design and rotate the rack back 20° to get the input shaft lower. Stock, manual, power racks, or later model Mustang II or T-Bird power racks can be used. The rack is positioned so the bellows will clear most aftermarket full A-Arms. When using crossmembers with our "power" steering rack, you may also need (2) rack spacers (9101023). (These spacers are included with our Mustang II suspension kits.)
The holes for the lower control arms are 1/2″ (stock). If you will use tubular lower A-Arms instead of the stock lower arms, the lower pivot holes will have to be drilled out to 5/8″. Lower control arm pivot tubes and gussets are not included.
These crossmembers will work with stock control arms. If used with stock arms, these will require strut rods and strut mounts for installation. Speedway crossmembers DO NOT include strut rod mounting brackets. We recommend either our offset or no-strut control arms or the tubular strut rod (91034322).
Note: Applications where the vehicle has fenders that mount directly on top of the frame, the fenders will require extensive modification to allow clearance for the upper cross member section.
More Like This
Q & A
Learn how to install a front axle in your 410 sprint car as the guys on our build team keep progress moving. You won't want to miss this!
Check out our 6th episode of the 410 Sprint Car Build series. Last time we assembled the rear axle and now we are installing it!
Follow along as Kyle Vanover share tips on how to keep your shocks clean.
Kyle Vanover explains the results of tires rubbing on shocks. Check out this video and give the Speedway Motors Shock Tech department a call for assistance.
Kyle Vanover discusses how dents affect racing shocks. Learn how monotubes and twin tubes are affected by damage differently.
Incorporating a Model A rear cross member and a high arc stock spring into a roadster build.
Learn how to lower a hot rod by modifying the axles and some history behind early hop ups. This project features a Ford axle with wishbones for a Model A.