Product Summary

Front Position, Mustang II | Subframe Crossmember Type

  • This bolt in front frame section is a great way to improve your vehicle's suspension, handling, and overall performance
  • Works with both manual and power rack and pinions
  • Motor mounts are welded in place to make this a simple installation
  • Use with tubular no-strut style lower control arms only
  • Choose from a variety of front suspension kits to finish off your front end
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Key Specs

MFG. Part #91034439
PositionFront
Crossmember TypeMustang II | Subframe
Crossmember StyleBoxed
Attachment StyleBolt-on
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Need To Know

Truck Shipment

Truck shipments must be pre-paid with a credit card, certified check or money order

Quick and Easy Returns

Return Policy

Speedway Motors 91034439 Details

Replace the questionable stock front suspension in your Chevy II Nova with a world-class Mustang II front end. This rugged Mustang II crossmember is constructed of 7 gauge steel and allows you to directly bolt on a no-strut Mustang II IFS, rack & pinion steering, and upgraded brakes. Included in this subframe kit is all the special, hard-to-make brackets and mounts you will need to complete the installation into your 1962-67 Chevy II Nova, plus detailed installation instructions.

  • Mounting points of all control arms match the original Ford design
  • Factory anti-drive built right in
  • 1962-67 Chevy II/Nova cars
  • Constructed of 7-gauge steel w/ welds ground smooth
  • 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!
  • Crossmember and Spring Towers pre cut and pre-welded to fit your frame
  • Lower control arm pivot tubes and gussets are welded in place
  • Works with both manual or power rack and pinions
  • Works with tubular offset or no-strut control arms ONLY
  • Outside Frame Rail Width: 32"
  • Crossmember moves wheel centerline rearward 1/2" to center the wheel correctly in the wheel well opening

Simply add a Speedway Mustang II IFS kit to get a complete "hub to hub" front suspension.  

Note:

  1. Additional items may be needed to complete installation along with any hardware required as hardware is not includedYou 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".
  2. Works with tubular offset or no-strut control arms only.  We do not recommend the use of 5/8" narrowed control arms with this subframe to prevent spring to frame rail interference.
  3. 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 Details

1962-67 ChevyII/Nova
Complete Bolt-On Frame Section - Truck Freight Only
Complete installation may require you to purchase corresponding a-arms, shocks, springs, brake kit, spindles, and steering rack and pinion along with any necessary hardware as hardware is not included.

Notes

Overall 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.

 Mustang II Track Width Options (PDF)

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.)

Works with tubular offset or no-strut control arms only.  We do not recommend the use of 5/8" narrowed control arms with this subframe to prevent spring to frame rail interference.  Lower control arm pivot tubes and gussets are included.

Charts

Speedway Motors 91034439 Specifications

KEY SPECS
MFG. Part #91034439
BrandSpeedway Motors
PositionFront
Crossmember TypeMustang II | Subframe
Crossmember StyleBoxed
Attachment StyleBolt-on
GENERAL
Steering System CompatibilityManual/Power Rack and Pinion
Control Arm CompatibilityTubular
Material TypeSteel
Material Gauge7-gauge
FinishNatural
ColorNatural
Ride Height (w/Stock Spindles)3" to 4" Lowered
Wheel Centerline Adjustment1/2 Inch Rearward
Material Thickness0.18"
Hardware IncludedNo
Sold in QuantityEach

Ratings & Reviews

4.7

11 Reviews

Overall Assessment

Customers have praised the product for its excellent quality, particularly acknowledging the flawless welding work. They found it easy to assemble, remarking on the perfect fit and ease of bolting. Its durability is clear, with customers appreciating its substantial weight of approximately 100 pounds. They noted the product's good appearance and impressive value for money. Some have repeatedly purchased it and highly recommend it to others. Comparing to other similar products in the market, users regard the product as superior in quality and cost-effectiveness.

4.7

11 reviews

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Great kit!

5.0

a year ago

Will

Florida

Verified

Fitment was nearly dead-on. As with anything some minor adjustments needed to be made but nothing major and it bolted right up.

Would Recommend

I would buy this product again!

5.0

a year ago

Mark

Peoria AZ

I have used two of these cross members on the first GEN Chevy 2. Both of them were direct bolt on.

Would Recommend

Looks good so far.

4.0

3 years ago

Rick

Mena Arkansas

Verified

As I haven't installed it yet it's really hard to review it fully. I am satisfied so far some of the slots look like they could be better machined for control arms but everything else looks good should save a lot of time.

Would Recommend

Chevy II Subrframe

5.0

4 years ago

Malcolm

PC Beach Fl

Verified

Chevy II Subframe for Street use - quality product at low price, would compare it the ones I have seen from other companies for half the price.

Would Recommend

I would definitely buy this again. Perfect welds and you ju.

5.0

4 years ago

Tony Hamilton

Spanaway, Washington

Verified

I'm putting mine on a 66 nova wagon.

Would Recommend

Subframe looks excellent

4.0

5 years ago

Dave

Jackson mi

Verified

I am stubbing the frame on a 48 ford sedan.

Would Recommend

excellent

5.0

6 years ago

nate

somerville tx

went together perfectly

Would Recommend

looks even better in person

5.0

7 years ago

beanz

orlando fl

Verified

it DOES fit a BBC must be a liability thing . I am very happy with the quality. it is very beefy and the welds are perfect. it weighs about 100 pounds

Would Recommend

I would perchase again

5.0

7 years ago

novaman

Louisiana

Verified

welds were perfect . Avery thing went together very easily .

Would Recommend

Good looking product

5.0

9 years ago

flathead

ohio

Verified

bolted on veary easley

Would Recommend

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Showing 10 of 11 reviews

Questions & Answers

8 Questions8 Answers

Are there double adjustable coil over shocks available to go with the tubular front end with the 2" drop spindles

by Ted

5 years ago

1 answer

will this work with a big block chevy ?

by cheesewiz

7 years ago

1 answer

does this frame come with motor mounts welded to frame

by bill

9 years ago

1 answer

is it fully welded so i can just bolt it in

by Dave

9 years ago

1 answer

Is a hood hinge mount included with this subframe?

by Andy

9 years ago

1 answer

Is an inner finder well kit available for this front suspension?

by Andy

9 years ago

1 answer

I got this front end for my 67 nova , I want the 2" drop spindles ,coil over springs and rack and pinion steering package ,can I get a kit that is complete with everything I need besides making multiple orders ,if I can what is the kit number so I can get it ordered ? if not pls send me all the kit numbers for me to complete the front end , ps I want the front disc brake system also thank you Joe Stidham

by Tommyjoe

9 years ago

1 answer

Can i use upper control # 91034320 that you have on sale and can i use the lower spring control arm yhat nyou have in yhe garage sale .can i order se parts to work together

by racer wayne

10 years ago

1 answer

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