New dimensions (lower than previous models by 1.4 inches and longer by 3.8 inches) add emphasis to Mustang's long hood/short deck pro- portions. Want to know Differential Widths? | Mercury Cougar Owners WARNING: Some 8.8 axle assemblies such as the 2007-2010 SVT Mustang have a spacer between the rear pinion bearing cup and the axle housing. The flange-to-flange measurement of the rears on the '65/'66 Mustangs is 57.25". De Dion axle. Mustang , Fairlane / Torino rear I have dealt with '66/'67 Fairlanes for over 20 years and I know that the '66 to '69 Fairlane and Torino have a flange to flange dimension of 54.25 inches , the '67 to '70 Mustang have the same dimension , the differance between the 2 housings are the spring perch type and the mustang has the brake hose/vent on the left side and the Fairlane / Torino on the . rear end in it you would need 2.5 pints of gear oil. After the studs have been pressed into the axle, install the correct-dimension centering ring around the hub to help center the rotor to the axle centerline. For 2011-2014 Mustangs, both the V6 . If you have 12 bolts, then the rear end is a 9 inches. The axils must be modified as follows to fit the Mustang II axle housing: * Long axle shortened by 1/8 inch. By Joseph Coelho - November 5, 2015. Actual wheel track could be as much as 6" to 8"depending on drum size: '67 to '70 Mustang/Cougar 6 cyl. Hardtop (65B) luxury - 55,938 built. If you have loose axles laying around, you can simply measure the outside diameter of the bearing. For stopping power, the Mustang (MY 64) 200 3.3 Fastback braking system includes Drums at the front and Drums at the rear. However, all 67->up 8" and 9" rears have a slightly larger tube dia at the spring perches than the 65/66 Mustangs. Another strength consideration is pinion-shaft . The suspension and steering under the 6-bangers is not as stout, even the rear end was smaller the 7 3\4" unit. I want to find out what rear end it is because I am putting in a 351 windsor into it. Axle code. Give us a call at 800-216-1632 to get started. Avg. 2dr. However, if you don't have an LSD and you want to upgrade, there's plenty of options to go with. 1966 Mustang Coupe Project Car. The other question I have is that the 1966 289 mustang coupe car I am selling is set up different in the rear end. The Pirate Jack Classic Mustang Rear Disc Brake Kit provides an easy to install, bolt on solution for upgrading your Mustang Ford passenger car 9" rear-end. While a basic housing and axle package for a Fox-body runs at around $1100, a complete rearend that is ready to run with basic disc brakes and a Posi starts at about $2700. small or large? Pictures show the trouble areas. 1966 Ford Mustang Axle Information & Ratios. 5.5x15" (heavy duty station wagon steel rims) or 6x15" Crager Chromed rims. please help me. 2.80 open differential. CLICK HERE to enlarge The number of times the driveshaft rotates for each rear wheel rotation is your Mustang's rear gear ratio. I asked him if it was 93 cobra or a turbocoupe rear end and he said that he don't know. Product Details. Ford cars and trucks from 1968 on have an axle code on the Certification Plate, information on this plate can be used to determine if you vehicle is factory equipped with a limited slip positraction rear end - differential. This part is manufactured by one of the most trusted names in the automotive industry to keep your vehicle perform optimally. The 9" does not have enough room on the lowest bolt for the socket with extension and an 8" does. Favorites among circle track racers include the rear axles from in '66-'70 full size Fords and Mercurys, '71-'72 Lincolns and '68-'72 F100 Ford trucks. In short if you have a Foxbody that's made before 1981, if you have an automatic, or if you have a V6 engine, your Mustang won't have a factory LSD. (The left over 1965 models came with either the silver-painted steel rims or Cragar mags. The Mustang (MY 64) model is a Coupé car manufactured by Ford, sold new from year 1964 until 1966, and available after that as a used car. For stopping power, the Mustang (MY 67) 289 4.7 V8 braking system includes at the front and at the rear. The 1966 Shelby Mustang GT350 measures 68.20 inches in width, The 1966 Shelby Mustang GT350 measures 181.60 inches in length, and has a wheelbase of 108.00 inches. The 1966 fastback has a new and different style of seat latch for the folding rear seat option. REAR SUSPENSION. If you have 10 bolts, then your Ford has a 7.5-inch or an 8.8-inch rear end. All 79-04 Ford Mustang Rear Ends used 28 spline axles except for the 2001 and 03-04 SVT Cobras - they used a 31 spline axle in their IRS rear end. Step 4. 2dr. Hardtop (65C) bench seats - 21,397 built. The Mustang design was not changed much for 1966. The 1969-'77 full-size Ford, Mercury, Lincoln, and half-ton trucks from 1973-'86 used the strongest (thickest tubing) rear housing of all the 9-inch rear donors. * Short axle shortened by 5/16 inch. From the measly 2.26:1 gear found in some of the first years of the Fox Body Mustang to the 3.73:1 ratio found in some of the most current performance models, Ford has offered factory gear choices to fit almost every driving style! Mustang seats have a woven pattern whereas the 1965 seats were smooth. that makes cross country trips. * Factory taper at the spline end must be retained to provide proper fit into the carrier. The 1966 Ford Mustang measures 68.30 inches in width, The 1966 Ford Mustang measures 181.60 inches in length, and has a wheelbase of 108.00 inches. 1966 MUSTANG VIN NUMBERS. The Mustang II utilizes two different style rear axles. 8" rear-end is believed original to the car. Hello everyone. De Dion axle. Mustang II Axle Identification. Ford used the 9 inch rear from around the 1957 model year right up until the early 1980's in cars and trucks. That is why it fit so well for everyone else who posted. I did quite a bit of searching for the right rear end for my 1966 Mustang. The Mustang Shelby GT housing is an easy one to spot, albeit rare, because it has extreme tapering of the axle tubes at the ends. Up until 2011, the V6 models had different rear ends than their 8 cylinder counterparts. I have 1966 mustang 6 cylinder end I want to put discs back but everywhere I'm wondering if I have small or large bearing. Traction-Loc vs Torsen I believe the '66 Fairlane is 59.25". Original 289 "C" Code V8 car, does not have motor/tranmission. does anyone know? We have a large selection of gear sets in stock and can recommend the correct . rear suspension. This is 90 wt. Every V8 Mustang that came out of Ford in the early days had five lug nuts, the 6-cylinder cars got four. If you want a little extra kick without overdueing it 3.50 would be pretty good without an overdrive trans. This is also sometimes referred to as the final-drive ratio since it's the last gear that must turn before power hits the pavement. You can always spot a straight-six Mustang with a quick look at the wheels. Wilwood bolt-on brake conversion kits are designed to provide superior braking performance and a highly detailed appearance over a wide range of domestic and import applications. #13. If you know your axle tag number, simply go to the second table. The Ford 9-inch rear is by far the most heralded of all rear differentials. In fact, it was the best selling Mustang of all time! The standard wheel on the cars after 252 left over cars was a 14" Magnum 500 wheel. The 2005-2010 V6 Mustangs with a Ford 7.5 rear end used 28 spline rear axles whereas the 2005-2010 V8 Mustangs with 8.8"rear ends used 31 spline rear axles. If you have a rear gear ratio of 3.31, the driveshaft rotates 3.31 times for each wheel rotation. This axle is outfitted with 31- spline axles, large ball-type axle bearings and is 61" wide. Shop Proportioning Valve & Distribution Block for your classic 1965-1973 Mustang at NPDLink.com! The first-generation Ford Mustang was manufactured by Ford from March 1964 until 1973. I will mark the drive. Rear axle widths. rear suspension. Will require sheetmetal repair in all of the typical Mustang areas. For 1966, the Mustang again was offered in three body styles - coupe, convertible, and fastback. Last year with the OHD, the stock gear was a little to high for the mountains from Indiana to Reno, NV. Ratio & type. Rebuilt 4 lug rear end - new bearings and seals (~5 years / 8,000 miles ago) Rebuilt drum brakes all around Dual master cylinder with vacuum brake booster Center console Interior Lokar gas pedal The bad: Does not run / drive and will need to be towed No cylinder head (removed and moved to my new project - have a spare core if needed) 7.5 inch, 8.5 inch, 10.5 inch. The inside door panels have a horizontal line . If you have a 7.50 in. The factory gear ratios in the transmission and rear-end are chosen to allow for RPM-friendly highway cruising, while . I also have the car's original window sticker from Shelby American, and this document does not identify the installation of a spoiler, in fact this car was shipped the McFayden's Ford of Omaha, NB with NO options at all (no radio, no rear seat, no locker rear end and no optional Crager wheels). Currie ® Ford 9-inch rearends for 1964 thru 1966 Mustangs and Cougars, provide a direct bolt-in solution for those looking to upgrade the rearend of their classic muscle car or restomod build. The introduction of the Mustang created a new class of automobile known as the pony car. Tim\u0027s Auto Repair. MUSTANG 63A SPORTSROOF EXTERIOR FEATURES The Mustang SportsRoof is an all-new design with a low sleek roofline, a built-in rear deck lid spoiler and deep simulated side air scoops. As a result, they have their own gears (although the same size at the 8 cylinder 8.8 rear ends). The rear end has developed some slop, I was hoping it was U-Joints, but am not lucky enough. This article applies to the Ford Mustang GT (1996-2004). That being said, it isn't just a simple bolt in procedure, especially if the housing you have isn't a perfect fit. I have 3.70's in mine and she revs pretty high on the interstates (I also have stock diameter tires which makes a difference). Variations by Ford exist in the size of the outer axle bearings in the housings and carriers both, as well as with the spline count on the axle shafts. Ford saw this as an opportunity to redesign it to appeal more to the masses, so . The second is used on some 6cyl and all 8cyl cars and is an 8" ring gear removable carrier axle. 1966 GT350 Specifications. It is built to the original equipment specifications to ensure factory-like fit, quality, and reliability. A Ford 9-inch has a ring-gear diameter of, you guessed it, 9 inches closely followed by the 12-bolt at 8.875, with the Mustang rear at 8.80 inches. GTs have had a standard limited-slip differential since 1986, and four and six-cylinder Mustangs have had one since 2011. Clear/Clean Missouri title. Photo 2 and 3 show a large bearing axle housing and you can see a noticeable size increase where the axle housing meets the backing plate. This was accomplished by using the Ford Granada 5 lug axles from an 8 inch rear end with a "drop- out" carrier. This axle is outfitted with 31- spline axles, large ball-type axle bearings and is 61" wide. I ask him about the gear ratio and he said that it was stock but he didn't know what ratio it was. 1966 Ford Mustang Body Styles: 2dr. (3-3/8" x 2", 3-1/2" x 2-3/8", 3-9/19 . Many of these units also have larger 3-1/4" axle tubes. The 1966 Ford Mustang accounted for 27.5% of Ford's 2,212,415 production. thank you. The 1966 Mustangs were a smash! The 1966 Silver Mustang we have here at Skyway Classics is a C Code Engine with what we believe to be the original 289 cubic inch engine and is extremely close to factory original. Currie Ford 9-inch rearends are built to match the vehicles original equipment axle width, pinion location, suspension mounting . Used on the early Mustangs and Falcons and can be easily identified by the small 1 inch diameter bearing caps and that there are no visible outside snap rings as usually found on most Ford driveshafts. Connects driveshaft to rear end pinion yoke. 64-66 Mustang Rearends. Ford Mustangs leave the factory with a well rounded mix of performance and fuel economy to meet the demands of a daily driven vehicle. This is critical and prevents misalignment, which could create unwanted vibration and/or poor braking performance. The following is a general list of rear ends and their dimensions to help narrow the search for a possible candidate to replace the torque tube rear end or just get a better set of gears for highway driving. of suitable length) on each side of rear axle pinion bearing cups to prevent rear axle pinion bearing cups from cocking in rear axle housing bore. Mechanic. Our experts will help you find the correct ring and pinion set for your particular application. 1966 Mustang Production Information. ;) Year & Model Axle Length Notes 1965-1966 Mustang 57.25 inches 1967-1970 Mustang 59.25 inches 1971-1973 Mustang 61.25 inches 1977-1981 Versailles 58.50 inches 1967-1973 Mustang, Torino, Ranchero, Fairlane 59.25 inches to 61.25 inches 1957-1959 Ranchero and station wagon 57.25 inches. Consoles were a often ordered item and automatic transmissions priced at about $176 were ordered on about 63%of all 1966 Mustangs. Keep in mind as mentioned, the Fairlane spring perch distances were not the same as the Mustang. Most cars manufactured between 1960 and 1980 have rear spring rates and the travel geometry that are entirely dependent on leaf springs; effectively making them both arm to locate the axle, and spring to control the axle's travel. Many of these units also have larger 3-1/4" axle tubes. '67 to '70 Mustang/Cougar 8 cyl. 14,876 satisfied customers. 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