This RAM 1525 Billet Steel Flywheel is recommended as a replacement for the factory Cast Flywheel in your high performance or race Mustang.
The stock Cast Flywheel is not explosion proof and can be dangerous when used in your high performance Mustang at higher RPMs. This RAM Billet Steel Flywheel is CNC machined from certified materials and exceeds SFI specifications.
After machining, the Flywheel is blanchard ground parallel to the crankshaft mounting surface ensuring minimum runout and the optimum mating surface for the clutch disc.
Use a Billet Steel Flywheel in a heavier drag race Mustang or for the best driveability in your street driven Mustang.
Flywheel Selection Note: Use a Steel Flywheel on street/strip Mustangs & use an Aluminum Flywheel on race oriented Mustangs that have 4.30 or lower gears or on road race Mustangs that spend most of their time in the upper RPM range & need quick acceleration out of the corners.
Flywheels are covered under 30 day Manufacturers warranty and are STRICTLY FACTORY WARRANTY ONLY. Customer must return the unit to RAM for evaluation and inspection.
Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!
Published on 2011-04-30 Ram offers a wide selection of Mustang performance clutches, flywheels and accessories. They also provide Stang community with high quality factory replacement clutches as well. So whether you need to keep a stock clutch feel or need a solution for the drag strip, Ram Clutches has you covered. See the Buyer's Guide below for more details.
Published on 2014-10-24 We know all too well how difficult and confusing it can be to match a flywheel with the appropriate clutch. However, we break down the pros and cons of cast iron, billet steel and billet aluminum pressure plates to guide you down the right path when making your purchase.
Founded in 1971, RAM Clutches has been producing the world's top performing clutch kits and flywheels for street and track driven Mustangs. Each component is developed, improved, and produced in-house to provide the highest performance at the best value. Every RAM product incorporates critical features that are absent from many of the products of those who choose to compete with them.
What is absent on RAM's program is the mythology and hype masking the deficiencies of products produced by others. If you're not viewing this video on latemodelrestoration.com, click below for more information on RAM Clutches.
I'm Jay Mack with latemodelrestoration.com and I wanted to take a few minutes to talk to you about the differences between 1982 to '95 five liter Mustang flywheels. From the factory, your '82 to '95 Mustangs came with a 10 inch clutch. Was a 50 ounce imbalance flywheel and it's a very common upgrade to make those a 10 and 1/2 inch whenever you go to swap out the clutch. Now from '86 to '95, all the clutches were upgraded to the 10 1/2 inch version that we know today. Factory flywheel was cast iron, and six bolt pattern, and also 50 ounce imbalance.
When you get into the realm of replacement flywheels, you do have a few options and it could be a little confusing. You have your stock style cast iron replacement from either 5.0Resto or Ford Racing. When you get into the options from all of your aftermarket companies, you'll either have a billet steel, billet aluminum, or both in 50 ounce imbalance, 28 ounce, and even a complete 0 neutral balance. That's where your confusion is going to come into play.
Any factory engine or any rebuilt factory engine is going to take a 50 ounce imbalance flywheel. Another thing to remember is pretty much all of your aftermarket billet flywheels are going to be SFI approved, and that way you don't have to worry about them coming apart, taking out your ankles.
Now what materials do you want to use with what? Your cast iron flywheel, obviously, that's a great stock replacement even for mild bolt ons. If you're going to be visiting the track a bunch, doing a bunch of high RPM clutch dumps on sticky tires, probably not the best choice. You may want to go ahead and step up to a billet steel. Now the billet steel will also work great in a stock application if you just have to have the best of the best for your car.
Billet aluminum is suited well for the road course where you can have instant acceleration out of the corners. Not so great for drag racing, because you lose the inertia that you need to get the car moving right off the starting line. Not saying it would be a bad choice in the street car, but you will notice you take a little bit more clutch slip to get the car moving. Clutch types.
Any time you're going to be using a clutch that has a puck typeface, semi-metallic, ceramic, doesn't matter. If it's a puck type clutch, you're going to want to use either a billet steel or billet aluminum flywheel because a cast iron flywheel will just chew itself up.
Any of your stroker motors or engines that have had custom balancing work done are typically going to take a 28 ounce imbalance, but it could use a 0 neutral imbalance. You need to check with the shop that did your balance work or any of your machine work to find out what flywheel you need to order. We have all of these available and in stock at latemodelrestoration.com. You can grab yours today.
Works great! The billet construction and SFI rating give me piece of mind that it's not going to grenade and modify my feet. I'm very pleased with the feel and have not had any noticeable impacts to the speed at which the engine revs up or down compared with the stock cast iron flywheel. My stock resurfaced cast-iron flywheel weighed in at 19.6 lbs while the RAM billet unit weighed 28.0 lbs.
I installed this during a complete clutch job including a new RAM HDX clutch & pressure plate, Ford Racing clutch fork & cable, steel input bearing retainer, Ford Racing pilot bearing & clutch release bearing, clutch fork pivot stud, new ARP flywheel bolts and new pressure plate hardware. What started the whole ordeal was a blown tailshaft bushing, so I also replaced that along with the tailshaft seal and switched to a Ford Racing aluminum driveshaft.
Installation overall was very easy. I did have to sand down the flywheel side of the dowel pins that came with the M64397A302 kit to get them to go in (were 0.3165", needed 0.3140"). I'm not sure if the imprecision was on the flywheel or the dowel side, but I suspect the dowel. Regardless, 5mins with some sandpaper to the dowel pins and it was good to go.
I've got about 1800mi on the new setup and it is night and day compared to my old setup. I bought the car with 122K mi on it last year and it had a King Cobra clutch & pressure plate with about 10K mi on it. It still had the original everything else and a resurfaced flywheel. The pressure plate and flywheel were blue/purple hued due to heat hardening and had significant surface checking.
With such a huge part exchange, this isn't a good A/B test, but as part of the new complete package, I'm very happy!
Ram - Clutches, Clutch Kits, & Billet Flywheels
For over 35 years, RAM has produced the world's top performing competition and street performance clutch systems. They have developed, improved, and produced in house, tried and true clutch components and systems that provide the highest performance value for your Mustang. Today, every RAM product incorporates critical features that are absent from many of the products of those who choose to compete with them. Shop Latemodel Restoration to get performance RAM clutch kits, flywheels, and pressure plates.
Working in a customer service oriented job I can truly appreciate minute by minute notifications and incredible customer service. I am building my seventh fox and have dealt with every known distributor on the planet and LMR is by far the most efficient and thorough company I have dealt with.(twisted wedge top end kit and supporting equipment project starting this week)
I recently traded in my 2010 GT Premium for a manual 2015 GT Premium with the Performance Package. At first I wasn't sold on the new Mustang body style but after seeing it in person and seeing the aw...