News

Today’s question was sent by Bastiaan: Hello, I have a question for my car Honda s2000. It has a torsen rear differential, rear wheel drive. There is much discussion online about which oil to use. Options are: 75w90, 80w90, 75w140. Some can be found in mineral and some in synthetic. I dont know if you ... Continue reading Ask Torsen: More about Lubrication →

Happy Halloween from the staff at JTEKT Torsen North America! Come visit the Torsen-o’latern in person today at the SEMA show, booth #20645.  We’ve got candy!  Bonus points for coming in costume! Continue reading A Torsen Halloween →

Torsen Differentials will be in booth 20645, in the Central Hall, at the SEMA show between 10/30 and 11/2/2018.  As such, much of our staff will be out of the office.  Technical support emails and phone calls will not be answered during that week; messages will be returned after we get back from the show.  ... Continue reading SEMA Week and Tech Support →

Torsen is pleased to announce the introduction of a model – 975420-0195A, for the Dodge Challenger and Charger models that use the Getrag 226 axle.  This axle is commonly found in the SRT8 cars, as well as some R/T and other assorted models with performance packages.  This T-2R design is architecturally related to our Ford ... Continue reading New Product Announcement – Challenger / Charger SRT →

Ed Smalley wrote into Torsen to ask: Greetings, My 2018 Ford Mustang GT350 has an OE Torsen® differential and I would like to know if using a mini spare tire is possible. The original tire diameter is 27.4″ and the spare tire diameter is 27.7″. What say you? Ed Smalley Ed, Thanks for contacting Torsen.  ... Continue reading Ask Torsen: Using a Mini-Spare Tire →

Torsen will once again be exhibiting at the SEMA show in early November.  Come look for us in booth 20645 in the Central Hall.  The SEMA Show runs from October 30 through November 2.   Continue reading Torsen at SEMA 2018 →

Announcing more new products! JTEKT Torsen is pleased to bring back the Type-1 differential for the 31-spline Ford 9-inch axle.  We were able to produce a limited quantity of these babies, so once they sell out they will be gone.  The Type-1 is the original, crossed-axis Torsen, which has naturally high TBR characteristics.  Torque bias ... Continue reading More New Products! →

Wow, 2018 has been flying by.  We’re more than a half the year gone, and this is the first time we’ve had a chance to post anything here.  But there’s good news – announcing new products! Peregrine High-Torque Differentials for S550 Mustang We mentioned this in passing a while back.  Under the code name “Peregrine”, ... Continue reading New Product Announcement →

To all, We at JTEKT Torsen North America would like to wish you and your families the warmest greetings this holiday season. Seasons greetings and Merry Christmas! The Torsen staff Continue reading Happy Holidays from JTEKT Torsen →

JTEKT Torsen will be shut down over the Christmas and New Year holidays.  We will close for the season on Friday, 12/22 and reopen on Tuesday, 1/2/18.  Orders placed during this time will be addressed when we return.  Also, some staff will be beginning their holidays early, so some communications in the week prior to ... Continue reading Winter Holiday Closure →

JTEKT Torsen North America, Inc. will be closed for the Thanksgiving holiday on Thursday, 11/23 and Friday, 11/24/2017.  We will reopen for business on Monday, the 27th.  Any orders received over that period will be handled when we return. Happy Thanksgiving! Continue reading Thanksgiving Closure →

As previously announced, Torsen Differentials will be displaying at the SEMA show in Las Vegas, NV.  The show runs October 31st through November 3rd.  During that week, our engineering & sales / tech support office will be closed, as most of the staff will be at the show.  However, the manufacturing, finance & shipping departments ... Continue reading SEMA, Office Closures and Web Orders →

Torsen Differentials will be at SEMA again this year, in booth #35239.  Look for us upstairs in the South Hall. Image from SEMA 2016 Continue reading Torsen at SEMA 2017 →

Torsen Peregrine in action at Road Atlanta, courtesy of Brian Faessler.  Brian drives a 2015 Mustang that was prepared by Paul’s Automotive Engineering in Cincinnati, OH.  Both Brian and his father, Paul, race Mustangs using Torsen differentials.  More info about Paul’s Automotive Engineering can be found here: Paul’s Automotive Engineering   Continue reading Torsen in Action →

JTEKT Torsen North America will be closed on Monday, September 4th in observance of Labor Day.  Any orders or communications will be addressed when we return.  Have a great holiday weekend! Continue reading Labor Day Closure →

Today’s Ask Torsen entry comes to us by email from HMMWV owner Adam.  He asks: Hello, I have been reviewing how the Torsen T-1 front and rear differential functions off road. I myself have the differential in my ’94 Humvee.  My confusion in the diff comes from the Torque Biasing Ratio and what exactly is ... Continue reading Ask Torsen: Torque Bias Ratio Functional Questions →

Dearborn, MI – The Ford Mustang has used Torsen® differentials in select Mustang models since the 2012 model year.  This was no different for the 2015 S550 Mustang.  The inclusion of a Torsen T-2R in the Performance Package option helped the GT model reach its true potential.  Additionally, when the GT-350 was rolled out shortly ... Continue reading Ford Expands Torsen® Availability in 2018 Mustang →

JTEKT Torsen North America will be closed on Tuesday, July 4th, in observance of Labor Day.  Any orders or communications will be addressed when we return.  Have a great holiday! Continue reading Fourth of July Closure →

Today’s Ask Torsen question comes to us by email from James Stapleton.  He asks: (I) Have seen where you’ve stated that a T-2 might be better suited for open tracking than the T-2R.  I do both open track and autocross currently on Michelin Pilot Super Sport tires, and maybe changing to a 200 treadwear type ... Continue reading Ask Torsen: Type-2 vs. T-2R →

Just a heads up – JTEKT Torsen North America, Inc. will closed in observance of Memorial Day on Monday, May 29.  Orders and emails submitted over the weekend will not be processed until the following Tuesday.  There will also not be anyone about the office to answer the phones.  Have a great weekend! Continue reading Memorial Day closure →

This question comes by way of www.mustang6g.com forum user Brent Dalton.  This came from a discussion regarding managing axle temperature on the S550 Mustang and preventing overheating of the axle during track use.  For reference, 2016 and newer Mustang GT models with the Performance Pack (PP) option (which includes a Torsen® differential) have a temperature ... Continue reading Ask Torsen: Differential Contribution to Axle Temp →

Torque Bias Ratio (TBR) – also referred to as Locking Effect – is a term used to quantify how much resistance to wheel spin a differential has. This is true of any type of LSD, plate or a helical design like Torsen®. These devices work by creating internal friction; friction in the diff is what ... Continue reading More about TBR, Lube, Friction Modifier & You →

An extremely common question that we hear, here at the Torsen® Cosmic Information Center, is “how much power does this handle?” To which, I like to answer: how much do you got? While a little glib, it gets to the truth of the matter, which is that we don’t really care – from the differential’s ... Continue reading How Much HP Can it Handle? →

Continue reading How a Differential Works, a Video →

Wow, this year is going by fast.  Here we are in the middle of February already – and posts on the news page have been a little lax.  Well, good news: several new products have been added to the Torsen webstore. Has the thrust block for the Torsen diff in your Boss 302 gone on ... Continue reading New products available! →

With 2016 officially on the books, we all like to take a moment to reflect back on what that year brought us.  Here at Torsen Intergalactic, a lot of things took place that were noteworthy.  Most obvious to all of you was that a brand new website was launched, replacing that clunky old frame-based site ... Continue reading A Torsen New Year →

Continue reading Happy Holidays from JTEKT Torsen! →

JTEKT Torsen North America will be closed for the week of December 26th, returning on the 3rd of January.  Also, much of the staff will be off for at least part of the week prior to the Christmas holiday.  As such, any orders placed through the website after December 21 will not be processed until ... Continue reading Holiday Closure & Ordering →

Indianapolis, IN – Ford Performance announced the next Mustang race car on Thursday, adding to the list of high performance and track cars that use Torsen.  The FP350S was unveiled at the PRI show to a large crowd.  The track-only car replaces the previous Boss 302S as Ford Performance’s turn-key, ready to run race car ... Continue reading Mustang FP350S →

Part2 So, if all limited slip differentials work by creating friction, what makes them different?  That’s a good question, and is the key to what sets Torsen® apart.  Yes, as we said before, all LSDs generate friction.  But not all do so in the same manner or to the same extent. A typical, basic, clutch ... Continue reading How it Works, Simplified – Part 2 →

Part1 As you might imagine, a very commonly asked question around these parts is: how does a Torsen® differential work?  While this might seem like something that ought to be in the FAQ (which touches on it), there really isn’t enough space there to delve too deep into the topic.  But I did say this ... Continue reading How it Works – the “Simple” Version (Part 1) →

SEMA is now behind us, everyone made it home intact, everything has been unpacked and all of the pictures collected.  What seems like a fairly simple thing – going to a trade show – takes on a huge level of complexity when the show is one the size of SEMA.  If you happened to come ... Continue reading SEMA 2016 →

Continue reading Happy Halloween from Torsen! →

Part Two: Previously, we talked about some of the basics of choosing the correct oil for your Torsen differential. Now, can get into a little bit more depth. You may recall that that the Torsen® will operate in whatever oil makes your ring gear happy. However, that is not to say that all oils are ... Continue reading Lubricant & You: Part 2 →

Las Vegas, NV – JTEKT Torsen North America, Inc. will be displaying at the SEMA show in Las Vegas this fall. SEMA, the premier trade show for specialty equipment and aftermarket components for vehicles, runs from November 1st through the 4th of this year at the Las Vegas Convention Center. You will be able to ... Continue reading Torsen® at SEMA 2016 →

Rochester, NY – JTEKT Torsen North America, Inc. is pleased to announce that the Torsen® Type-2 differential for the Ford Ranger & Explorer version of the Dana 35 axle is back in stock and available for purchase. This differential, which fits the unique axle specific to the 4WD & AWD models of 1995-2001 Ford Explorer, ... Continue reading Availability of Torsen® Differential for Ranger Dana 35 →

Part One: Perhaps the most common question we hear, here at Torsen® Intergalactic Central, is “what oil do you recommend?” It seems simple enough, right? Well, not so fast there, pal – it’s not a black and white matter. You may have heard that oil is your engine’s life blood; for all the geared systems within ... Continue reading Lubricant & You: Part 1 →

Welcome! Hey, welcome to the new Torsen® website – the new home of JTEKT Torsen North America, Inc. online.  Thanks for stopping by.  Here, you can find the latest tech information, learn what makes helical gear differentials unique, find out what manufacturers use Torsen during OEM production, and browse aftermarket applications in our store.  Submit ... Continue reading New Website Launch →

The July 2016 issue of Car & Driver Magazine contains a feature article, titled Four on the Floor: All-Wheel-Drive Systems Explained. This article discusses and compares different technologies that are used in AWD system center differentials, in which Torsen® is highlighted and discussed. Author Josh Jaquot consulted with JTEKT Torsen in Rochester prior to writing ... Continue reading Car & Driver Magazine Compares Center Differentials →

Dearborn, MI – A new video, titled The Devil is in the Details, posted to Ford’s website features the Torsen® Type-2 differential. The video, which highlights the available technology and hardware that will make the 2017 F-150 Raptor standout off road, cuts away various portions of the truck so that the components being explained are ... Continue reading 2017 Raptor Video Showcases Torsen® →