Product Summary

Front Position, Mustang II Crossmember Type, Steel

  • Completely bolt in cross member for 1947-54 Chevy 1/2 trucks - no welding required
  • Includes bolt in interlocking frame boxing plates for strength
  • Full lower A-arms required with this crossmember (strutless type)
  • Requires power rack-and-pinion and tubular control arms
  • Features threaded ride height adjusters for fine tuning vehicle stance
See more details

Key Specs

MFG. Part #91044754
PositionFront
Crossmember TypeMustang II
Crossmember StyleBoxed
Attachment StyleBolt-on
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91044754 Details

  • Completely bolt in Mustang 2 crossmember kit
  • No welding required for installation, a drill and hand tools are all you need
  • Uses proven Mustang II geometry and designed for exact fit to 47-54 Chevy truck frames
  • Includes interlocking boxing plates to reinforce the frame for maximum strength
  • Threaded coil spring seat adjusters allow fine tuning of ride height, even with coilovers
  • Full tubular lower control arms required with this crossmember (strutless type)
  • Accepts our Mustang II/Thunderbird style power rack-and-pinion steering
  • Bolt-in motor mounts for small block Chevy and LS V8 available for crossmember
  • Crossmember not compatible with air suspension configurations

A True Bolt-In Mustang II Independent Front Suspension Solution For 47-54 Chevy Pickups

Straight axle pickup trucks, like the 1947-1954 Chevy 3100 (1/2 ton respectively) were originally designed for hauling cargo and not hauling butt! These trucks dutifully handled deliveries and served farmers and other owners for decades. However, today these GM Advance Design trucks are sought after for their period styling and certainly not for how they stopped, handled, or accelerated. These are all easily updated today to provide enthusiasts with those classic truck stylings, but that are now able to handle modern roads safely.

The Mustang 2 frontend is a popular independent front suspension (IFS) solution available for dozens of different car and truck models, from pre-war hot rods through 1960s and ’70s muscle cars; full frame or unibody there is probably a Mustang II IFS suspension kit available. The majority of these Mustang 2 crossmembers require welding for installation. We wanted to make the addition of a Mustang 2 crossmember to the popular Advance Design 1947-1954 GM 1/2 ton trucks something the average wrench turner could install themselves in a weekend with nothing more than a drill and some hand tools. Our 1947-1954 Chevy truck Mustang 2 crossmember, spring towers, and frame boxing plates are designed to not only bolt in, but interlock each other as well, creating a super strong chassis design. Classic Truck magazine’s Week to Wicked build even featured this Mustang 2 crossmember in our ’52 Chevy truck.

Our bolt-in Mustang 2 frontend crossmember kit for 1947-1954 Chevy half-ton pickups includes all hardware and instructions for an easy weekend project. Engine mount options include small block Chevy and GM’s popular LS family of engines. Our Mustang II suspension and brake package is the perfect solution for building a complete hub-to-hub IFS suspension kit. Finish off your Mustang II frontend installation with our 1947-1954 Chevy truck bolt-in transmission crossmember and pair your Chevy IFS install with our matching four-link rear bolt on suspension kit for the ultimate in handling.

Speedway Motors 91044754 Specifications

KEY SPECS
MFG. Part #91044754
BrandSpeedway Motors
PositionFront
Crossmember TypeMustang II
Crossmember StyleBoxed
Attachment StyleBolt-on
GENERAL
Steering System CompatibilityManual/Power Rack and Pinion
Control Arm CompatibilityTubular | Strutless
Tie Rod Extensions RequiredNo
Material TypeSteel
FinishNatural
Material Thickness0.19"
Hardware IncludedYes
Sold in QuantityKit
NotesIncludes crossmember, spring towers, threaded adjusters, and frame boxing plates
Coilover Springs IncludedNo
Motor Mounts IncludedNo

Ratings & Reviews

4.7

32 Reviews

Overall Assessment

Customers appreciate the product's ease of installation, quality materials, and stability it provides on the road. Minor readjustments were sometimes necessary, but overall, users found that assembly and fitting were simple. The instructions were noted to be easy-to-follow, but with some room for improvement. Users recommend having basic tools ready for the install. The product generally fits well, with only minor tweaks needed. Customers noted the bolt-on cross member allows non-welders to install, making it ideal for first-time users. The product's durability and careful engineering were praised by many. Some users suggested minor changes, like a more rigid drilling template, to enhance user experience further.

4.7

32 reviews

5

23

4

7

3

2

2

0

1

0

Most Liked Positive Review

5.0

To weld or bolt in an IFS kit?

Started the project early Saturday morning around 7:30 am. Removed front clip and suspension by noon, and had all frame brackets removed by 1 pm. I finished the installation Sunday afternoon, this included painting the A arms and waiting for them to dry. The true question here is if the product good or not, only miles down the road will tell. I can tell you that the average Joe can have this front end assembly installed in one day, and install the upper and lower suspension the next. The engineering that went into this front end assembly is very good, with good welds, and an easy to follow PDF instruction set that you can get off the product page. Here's to keeping an old rat on the road.

Most Liked Negative Review

3.0

Some modification required

I began installation but after a couple hours of easy installation i realized my kit didnt come as pictured. Specifically the inside braces had no access holes towards the front as is pictured in instructions and on the install video. I had to cut out the windows to allow access to the inside to install the bolts. This caused an extra couple of hours work and aggravation. I still think it is a quality product and seems well made. Quality control must have let this one slip through as it doesnt mention having to cut on the new brace anywhere.

Filter by Ratings

I would purchase this product again, solidly constructed

5.0

2 years ago

Jim

Autryville NC

Verified

I am building a 1949 Chevy pickup and this front end suspension system is exactly what I am looking for

Would Recommend

Great kit!

5.0

2 years ago

Wesley

Las Vegas, NV

Verified

Got the bolt in IFS crossmember. I do notice in older kits, there is a cut out to be able to get to one of the nuts inside, but the new kit does not have it. If I can make any recommendations, please go back to using that cut out. I had a heck of a time getting to that nut and eventually made my own cut out.

Would Recommend

I would use this again

4.0

3 years ago

Q

Utah

Verified

Prep to bolt up was easy. Instructions need a little work on leaving some bolts out until others are installed. Some of the bolts did not line up on the channel brace but drilling them out was not difficult. The only real frustrating thing is that the instructions show a cut out in the channel plate that is not in the part. If it were getting a wrench inside would have been much easier. I used a wrench with tape in it to hold the nuts in place to thread the bolts on.

Would Recommend

Absolutely recommend this product

5.0

4 years ago

Mack

Scotland

Verified

Easy to fit

Would Recommend

I would buy this again.

4.0

4 years ago

Buzz

Munster, In

Verified

Buy a 3/8" diameter bridge reamer to align holes

Would Recommend

Yes I always use Speedway ! GREAT Company

5.0

4 years ago

AD classic truck parts

Sparks, Md

Verified

Speedways is one of the best companies to deal with. I have used for years with no problems at all. I can't say the same for UPS.

Would Recommend

yes

5.0

5 years ago

David

San German Puerto Rico

Verified

this product give me the stability I need in the road

Would Recommend

Some modification required

3.0

5 years ago

427 bb chevelle

hundred wv

I began installation but after a couple hours of easy installation i realized my kit didnt come as pictured. Specifically the inside braces had no access holes towards the front as is pictured in instructions and on the install video. I had to cut out the windows to allow access to the inside to install the bolts. This caused an extra couple of hours work and aggravation. I still think it is a quality product and seems well made. Quality control must have let this one slip through as it doesnt mention having to cut on the new brace anywhere.

Would Recommend

Fit well, great welds and will last.

5.0

6 years ago

1953 Chevy 3600

Oregon

Verified

Put this in my 1953 Chevy 3600

Would Recommend

Great for first timers

5.0

6 years ago

Amateur Car Guy

Walnut Creek, CA

Verified

Easy to follow instructions and parts are easy to identify. Problem I had was, sorry to say was the packaging, missing some of the bolts. But easy to put on with only basic stuff you should already have in your garage. Aka Drill and leveler.

Would Recommend

Load More Reviews

Showing 10 of 32 reviews

Questions & Answers

54 Questions • 10 Answers

I was looking into a Bolton crossmember but is it a complete kit because I need everything

by Benny

• 6 years ago

1 answer

do you make a bolt in crossmember for a 57 chevy truck

by jeff

• 7 years ago

1 answer

I have a 6 lug disc brake kit on my straight axle GMC truck. Would this be something I could use with the kit in place of the 5 lug? Thanks!

by Zig

• 7 years ago

1 answer

Is it possible to maintain stock ride height with this crossmember?

by Jason

• 7 years ago

1 answer

What is the reason why shockwaves cant be used on this crossmember?

by Manny

• 7 years ago

1 answer

I am considering buying part number 91044754 cross member for my chevy pickup I will also need a power rack disc brake set up and a arms ball joints what would be the part numbers for these items or do you have a kit

by doug

• 7 years ago

1 answer

Will the bolt in crossmember for 47-54 chevy pickup work in 1950 gmc ?

by Keith

• 8 years ago

1 answer

What control arms do i need to use coil overs with this kit

by ron

• 8 years ago

1 answer

I'm wondering if I would still have room to use my original motor mounts and straight 6 engine with the mustang 2 crossmember frame kit and the rack&pinion in place. Just wondering if there is room. Part number 91034448.

by Jorge

• 8 years ago

1 answer

Will the bolt in mustang 2 fit a 1946 Chevy 1/2 Truck. What other options would I have if the bolt in doesn't fit.

by Justin

• 8 years ago

1 answer

Load More Questions

10 of 54 questions shown

Fitment

                      Customer Impersonation Script