This list will be updated as we receive emails from folks asking about specific vehicles.
Welder Series has a free service to help builders lay out the crossmember and upper tower cut lines. If you fill them out, take pictures of them, and email the pages back to us, we will give you drawings showing the sections to be removed. These worksheets can also give us the info we need to provide you with boxing plates. We’d give you a price for the plates and you can decide if you want to order them or make your own.
We are often asked about making a Mustang II crossmember kit for a track width less than the stock 56-1/2”. 56-1/2” is the distance from the rotors wheel mounting face to face. Aftermarket brake kits and rotors can change this 56-1/2” dimension. It’s good to have the brake kit, rotors, wheels and tires before deciding how much the crossmember should be narrowed.
Here are the steps I’d suggest:
Read all the way through this for best results.
Use our 56-1/2” kit, for either stock springs or coil-overs. Coil-overs will provide more spring to frame clearance and make it easier to dial in ride height and ride quality.
Get the wheels and tires that will be used.
Get the brake kit and rotors that will be used. (Might as well get the calipers, too, but this won’t affect the crossmember width.)
Mock up the car at ride height and position the wheels and tires, front-to-back and at the desired track width.
Compare the spindle height (the center of the wheel) to the height of the frame at the bottom. Decide on stock or dropped spindles. See https://shared-assets.adobe.com/ link/17afad9a-b219-4191-7cfb-7ee4bfa6277c/?file=Coil%20Over%20Mustang%20II.pdf, page 6, or https://shared-assets.adobe.com/link/17afad9a-b219- 4191-7cfb-7ee4bfa6277c/?file=Coil%20Spring%20Mustang%20II.pdf, page 6 for info regarding this decision.
Decide on stock length or shortened (narrowed) control arms. The upper arm cross shafts on stock length arms will be about 29-1/2” center-to-center with a stock rotor-to-rotor face width of 56-1/2”. When the crossmember gets shortened, the control arms will move closer together by the same amount. See if there will be clearance issues because of this. Shorter control arms will move the pivot point out by their “shortened” amount, given that the spindle location does not change. Shorter arms will mean a slightly choppier ride. Get the upper and lower arms that you decide on.
Mock up the wheel/tire, spindle, brake kit, rotor, and lower control arm. Put the assembly in position in the fender of the mock-up. The tire should be very close to vertical. Make the lower arm level. This can be done on just one side. Measure from the frame centerline to the lower arm pivot and double that dimension. Or mock up both sides and measure lower control arm pivots center-to-center. Subtract the lower arm pivot dimension from 22-1/4” and you have the amount that the crossmember should have removed from between the rack mounts.
It will be necessary to use a shorter than stock rack. Some machine shops will do this and there are aftermarket companies that make custom-length Mustang II racks. Before making the crossmember shorter, confirm that a rack will be available.
|Chev, 1962-67 Nova||56"|
|Chev, Car, 1935-1954||56"|
|Chev, Pickup, 1937-1955 (early series)||56"|
|Chev, Pickup, 1955 (second series)- 1959||60"|
|Ford, Car, 1933-1948||56"|
|Ford, Falcon, 1964-5||56"|
|Ford, Car, 1954-59||58"||https://welderseries.com/57-ford-mustang-ii-install/|
|Ford, Mustang, 1965-6||56"|
|Ford, Mustang, 1967-70||58"|
|Ford, Mustang, 1971-73||60"|
|Ford, Pickup, 1935-1941||56"|
|Ford, Pickup, 1942-1952||58"|
|Ford, Ranger, 1983-88||56"|
|Ford, Pickup, 1953-1979 F100||60"|
|Mercury, Comet, 1960-63||56"|
|Studebaker, Pickup, 1949||58"|
|Willys Jeepster, 1949||56"|
|Willys Pickup & Panel (with top hat frame), 1946-54||56"|
I am looking for a mustang cross member for a 1928 Chevy. What do you recommend steve
Steve, I don’t know of a Mustang II crossmember that will work in a stock-fendered ’28 Chev because of the way the front fenders sit on the frame and because the front splash apron and the MII rack will want the same space. But if you aren’t using stock-style front fenders, either of our 56″ Mustang II kits will work well.
To use conventional coil-overs or ShockWaves, see https://welderseries.ecwid.com/Mustang-II-Crossmember-Kit-for-Coil-Overs-Shockwaves-p51209593
To use Mustang II-style springs and shocks, air springs, or Mustang II style coil-overs, see https://welderseries.ecwid.com/Mustang-II-Crossmember-Kit-for-Coil-Springs-p51209443
If you do plan to use stock front fenders, we have used Heidt’s Superide for 1934 Fords in early Chev builds. It requires very little trimming.
Thanks for looking at Welder Series parts.
I am looking for a mustang cross member for a 1973 Datsun 1200. The track width is 1240mm What do you recommend steve
John, I suggest getting the 56-1/2″ kit and some narrow control arms. Mock up everything using a bar to hold the lower arm level, including the wheels and tires that you will use. This will require tacking some fill pieces to hold the upper mounts in place. Then roll the assembly under your Datsun and establish how much has to be cut from the middle of the crossmember to put the tires where you want them. A narrowed rack will be required. A source is MAVAL Mfg. http://www.mavalgear.com/the-world-of-unisteer.html .
Hey Paul, I have a 1980 Chevy Luv Truck that I want to put a Mustang II front suspension into. I ended up with some Mustang II parts, that I would like to install in the truck. The truck has a 102.5 Wheelbase, 51.5 rear track width, and 51.75 front track width. I don’t know the distance across the frame rails yet, but I know you are going to need them. I have a few scattered Mustang II parts, originally for a 1950 Chevy. A Mustang II cross member, which is going to be way too wide, A arms, that are probably going to be too long, with spindles with rotors for disc brakes with Chevrolet bolt pattern, generic shocks and springs, and some QA-1 coil overs that I will have to find out what they will fit. I wanted to ask you if any of this will work, and purchase from you what I don’t have, to make something that will work.
Do you have anything that will work for a 1964 Austin Healey Sprite?
Hi Mark, thanks for your note. You’re not the only one who’s asked us that! Here’s a link to a post from a number of years ago: http://welderseries.com/2009/12/dear-welder-series-austin-healy-sprite/. It appears to be a difficult swap, but we’d like to know if you attempt it.
Thanks again for writing.
Do you have anything that would work on an AMC 82 Spirit?
Hi Alfred. Do you know what the track width is? If you’re comfortable doing some frame work, our kit would be a good option.
I have a 53 ford ranch wagon, do you make a mustang 2 cross member?
That’s a really neat car… I believe you’ll have to fabricate a front clip that our crossmember would weld to. I found a thread on the HAMB where someone is building a Ranch Wagon: https://www.jalopyjournal.com/forum/threads/1953-ford-ranch-wagon-build.936826/. They installed a Camaro clip, but you could do a similar setup with a Mustang II grafted on.
Hi DW, this may have been covered already, but here goes. I have a ’61 Falcon. Would your MII kit for the ’63-’65 fit?
Hi Wade, you’d use the 56″ kit in your Falcon.
will you need to run narrow control arms to make the track width 55.5
Yes, that’s correct. Stock Mustang II track width is 56.5″.
I am intrested in weather there are any problems putting the welder series coil over mustang setup under my full fended 34 fordoor
any interference with fenders
Scott, the fender braces bolt to the frame where the upper towers for the control arms attaches. Usually, builders cut the fender braces and make brackets to bolt or weld them to the upper towers.
There isn’t any interference between the Mustang II parts and the actual fenders.
Thanks for looking at Welder Series parts for your project.
Hello. I am building a custom frame with an OD of 30 inches. Do you make a mustang 2 front suspension with a 52 inch track that will fit it?
Thanks Ken A
Hi Ken. The outside width of the frame should be about 26″ for a track of 52″. Short arms could be used and the frame could be a little wider.
Thanks for the reply. I haven’t started to assemble the frame just yet. And 26″ wide frame is no problem to build instead of 30″ wide. Could you list the all the parts I would need get the front suspension on wheels. It’s a small VW truck build going for a Rat rod look. So looking to build it on a buget. Thanks
I might do the m2 conversion on my 83 ranger.
I’m looking to replace the original ford mustang 2 cross member that is currently in my Cobra Kit car with one of your coil over cross members. I will be upgrading the a-arms to original length tubular strut-less and installing coil over shocks.
What coil over cross member would retain the original mustang 2 width/geometry.
Hi Stan. If it’s a stock Mustang II crossmember in your car now, then the 56-1/2″ track width kit would be the one to use. http://welderseries.com/-p51209593
do you have a kit that will fit a 1972 ford mavrick
Hi, Harold. Our 56-1/2” kits can be used in your Maverick.
If you want to use coil-overs or ShockWaves, see http://welderseries.com/-p51209593 .
If you plan to use Mustang II springs, see http://welderseries.com/-p51209443 .
In both cases, frame work and inner fender panel work will be necessary.
Thanks for considering Welder Series parts for this project.
What kit would you recommend for an International Harvester A110
Hi, Nathan. I like International trucks but don’t know the track width or frame specs for the different models. We make kits for track widths of 56-1/2”, 58-1/2”, 60-1/2”, and 62-1/2”. We define track width as the dimension from wheel mounting surface to surface on the rotors. For a 56-1/2” track width, the easiest frame widths to work with are between 26 – 30” outside. As the track width increases by each 2” increment, the “easy” frame widths also increase by 2”. For frame widths larger or smaller than the “easy” widths, the frame can be stepped in or out to accommodate the crossmember and towers. There is some info about this at http://welderseries.com/-p51209443.
Thanks for considering Welder Series parts for this project.
Trying to find a set up for my 1956 international s100 frame. But not sure what kit I would need would also like to run Chevy wheels and brakes if that matters
Edit. I just seen the comment before mine. If i were to measure distance of outer portions of the rail would that help to pin point which kit would work?
The kit you choose will be less a function of the width of the frame rails, than the desired track width. It’s easy to think of it like this: walking up to a car at a cruise night, it’s obvious if the tires are sticking out of the fenders 2″ each side, but nobody knows if the frame rails are the “correct” distance apart. We suggest mocking up the wheels and tires you’ll be using in the fenders, with the truck sitting at ride height. Measure the wheel mounting surface to wheel mounting surface, and that’s what we refer to as your track width.
Building a 51 Merc do you have know which width will work best, also I dont see it listed but do you have an already or mostly welded kit?
Jeremy, if your Mercury is a pickup (M1), use our http://welderseries.com/Mustang-II-Crossmember-Kit-for-1948-52-Ford-F1-Pickups-p101011488 kit or our 60-1/2”, http://welderseries.com/Mustang-II-Crossmember-Kit-for-Coil-Springs-p51209443 kit. You can also use our kits for coil-overs. If your Mercury is a passenger car, it will be necessary to modify the front frame section to install the Mustang II crossmember. Check the thumbnail pics on our website and read our instruction sheets while you look at your car’s frame.
Do you know what kit I would need for a 56 Studebaker pickup
Tim, I’m pretty sure your truck would use our 58-1/2” kit. What is the outside dimension of your frame rails just above the axle?
I have a 61 falcon do you have a weld in crossmember that will fit into that?
Hi Joseph. We don’t have a direct fit crossmember for your Falcon, but our 56″ kit would be the one to use if you’re fabricating the front frame section.
Hi, im looking for a 58 inch mustang 2 front suspension kit with cross member for a 1948 pontiac streamliner
Hi Joseph, we don’t sell a hub to hub kit – only the crossmember kit which is available on our web store.
My name is mark I have a 66 nova I need a frame only not a kit I have a kit in it that just didn’t work do you sell frame only
Thanks for asking, but we don’t make frames – just the crossmember kits.
Do you still have the 56″ kit? I have an 86 ranger
We do, it’s on our web store: https://welderseries.ecwid.com/Mustang-II-Crossmember-Kit-for-Coil-Springs-p51209443
looking for the correct mustang 2 kit for a 1953 Dodge B4C truck. Thanks
I’ve come across this request and hope I can still help. Also saw you picture. Looks like a good start!
The Mustang II crossmember to use depends on several things:
– The track width you want. We refer to track width as the dimension from tire tread center to center. Stock Mustang II was 56-1/2” and we make crossmembers for this, 58-1/2”, 60-1/2”, and 62-1/2”.
– The frame width. Generally speaking, the 56-1/2” kit “likes” a frame width of 26 – 30” outside. Add 2” to that for the other kits as they increase in width. For frames wider or narrower than ideal, there are workarounds.
– The height of the frame relative to the height of the spindle. In general, the ideal height of the bottom of the frame at the crossmember would be the same height as the spindle, plus or minus 1” for stock spindles. Dropped spindles can be use to lower the frame 2” from that. Spindle height is relative to tire size and will be close to the tire’s radius minus 1/2”. Tire dimension charts are on many manufacturer’s websites.
– The frame’s cross-section. A rectangular cross section is easiest to work with. When the frame, in the crossmember/upper tower area, is not rectangular, often a section of tubing can be put there. Other times, steel plate can be used to provide an area to weld the crossmember and towers. Channel frames can, and should, be boxed. Some other frames should be reinforced for strength.
There are many pictures of Mustang II installations on our website. Look at them to see how builders have used our kits.
Please apply these conditions to your Dodge. If you have other questions, please send pics and I’ll try to reply quickly.
Thanks for looking at Welder Series’ parts.
Hi there! I have a difficult one.. I have a 1960 Opel Record. Frame rail is 24 1/2” outside to outside and the track width is 54” at best. Do you have anything that would work?
Thank you so much!
We suggest a way to put a Mustang II in vehicles with narrow frames and track widths a little further down this page. Scroll down through the comments and you’ll see a few builders who asked the same type of question as yours.
If this info doesn’t help, please get back to me.
Thanks for looking at Welder Series’ parts.
IAM LOOKING AT BUYING A 1950 BUICK SUPER RIVIERA. IT SAYS IT HAS A FRONT TRACK OF 59.1 IN WHAT KIT WOULD BE USED 58.5 IN OR 60.5 IN THANKS, TERRY
I’d probably go with the 58″ kit so you’ll have more options for larger wheels, especially if the car will be lowered.
I’m looking for a crossmember kit for a 1952 Austin A40. Track width is 49.49”. Are you able to custom make a kit?
Hi Ash. I’ve added some info regarding narrow Mustang II crossmembers here: https://welderseries.com/more/mustang-ii-application-chart/
I hope this is helpful. Let us know if you have any more questions.