HammerHead Nominated Into Foundrymen’s Society Casting of The Year Competition

The all-new indestructible HammerHead IRS 12-bolt housing for the 2010+ Camaro is already raking in the awards including a nomination into the Foundrymen’s Society Casting of The Year Competition. The annual casting competition showcases excellence in design, engineering and metalcasting. The competition recognizes what the engineering community can accomplish and is considered a true honor to be nominated.

When asked of the origin of the HammerHead concept, Skip Lee explained, “The original idea for making an independent rear suspension (IRS) 12-bolt casting came from a conversation with my two good friends (and Corvette racers) Craig and Brett Saurbaugh. They’ve helped me with many of my automotive projects and saw this as a way to repay them (and at the same time create a product that many Corvette enthusiast would want).

“During the research and development phase of the HammerHead, I attended the December ’08 Performance Racing Industry (PRI) show where I first saw the 5th Gen Camaro. Then and there, rumors of an IRS similar to earlier Corvettes were confirmed, giving me the plan to incorporate both the Corvette and 5th Gen Camaro 12-bolt IRS projects together.

“I took my 50 years of experience as a performance automotive enthusiast and 40 years in my trade as a patternmaker to develop the HammerHead. Mark VanderWest at Leading Edge Fabricating built the prototype differential for a test car, holding up to a grueling 900-plus-horsepower 5th Gen.

“At that point the real work began – with the help of Wes Rice at RL Cast Tech. We developed a 3D CAD model that was made into a plastic Stereo Lithography (Select Manufacturing) part. Today, the HammerHead housing comes in lightweight cast aluminum (but is also available in nodular iron for extreme performance usage).

“I have done whatever it takes to keep all the manufacturing within the United States, even going so far as turning down offers from 7 large companies – just to keep HammerHead’s production within Michigan.

“My family’s support and willingness to sacrifice so much to complete this project was the turning point for me. Together with our team we will soon have an affordable IRS to market for the performance racing industry.”

The HammerHead 12-bolt housing is part of three different complete bolt-in replacement kits for the 5th Generation (2010+) Camaro, offering kits capable of handling up to 1400HP. The HammerHead also allows a larger selection of gear ratios, posi units, and racing spools when compared to OEM style differential options.

For more info contact  jeff@hammerheadhousing.com, visit www.hammerheadhousing.comfacebook.com/hammerheadhousings
or contact HammerHead Housings: 620 E. Riley Thompson Rd., Muskegon, MI 49445, at (231) 740-5534.

Magazine Scans Below:

Cover for Metal Casting Design & Purchasing Casting of the Year Issue

Cover of MetalCasting Design & Purchasing

HammerHead Foundrymen's Society

Hammerhead Featured in the Foundrymen's Society Magazine "Metal Casting Design & Purchasing"


For Immediate Release:
For more information contact:
Kevin Shaw
(615) 876-1822

HammerHead Announces Three Stages of 12-Bolt IRS For 2010+ Camaros

There’s no modern muscle car more popular than the 5th Generation Chevrolet Camaro. Today’s Camaros are the perfect platform to go faster and build insane amounts of horsepower, that is except for the factory independent rear suspension (IRS). The factory rear housing is the car’s weakest link and that is why HammerHead has created the new standard in high horsepower independent rear suspension technology: the revolutionary HammerHead 12-bolt housing.

The HammerHead housing is part of three different complete bolt-in replacement kits for the 5th Generation (2010+) Camaro. HammerHead housings has teamed up with industry leader The Driveshaft Shop and will offer kits featuring race proven DSS axles rated up to 1400HP as well as their bulletproof driveshafts. The HammerHead 12-bolt housing features more strength and less horsepower loss than a 9-inch Ford housing. And by using a 12-bolt, the HammerHead allows a larger selection of gear ratios, posi units, and racing spools when compared to OEM style differential options.

The HammerHead 12-bolt housing comes standard in lightweight cast aluminum but is also available in nodular iron for extreme performance usage. Kits are available in three stages; from bulletproof to indestructible, and the HammerHead has been prototype tested in a 900-plus-horsepower Camaro with a 35-spline WaveTrac posi unit. Best of all, the HammerHead kit is an easy bolt-in installation, and is available with an optional carbon fiber driveshaft or WaveTrac 35-spline posi unit.

The HammerHead housing will also be available for viewing on the Hot Rod Power Tour with the Black Beauty Camaro of Jeff & Tammy Mayes, and at the HammerHead booth at the Muskegon stop on the Power Tour.

Bulletproof Stage 1
33-spline Eaton TrueTrac. 3.42, 3.55, 3.73, 3.90, 4.10, 4.30, 4.56, and 4.88 ratios. DSS 1000 HP Level 4 Street axles and choice of driveshaft.

Bulletproof Stage 2
35-spline WaveTrac posi unit with lifetime warranty (including racing). “Indestructible” nodular iron casting also available for applications over 1400 horsepower. DSS 1400HP Axles and choice of driveshaft.

Indestructible Stage 3
Optional solid spool and 9310 alloy “Pro Gears” for racecars ONLY 4.11, 4.33, 4.56, 4.88, and 5.00 ratios. DSS 1400HP Axles and choice of driveshaft.

For more info contact jeff@hammerheadhousing.com, visit www.hammerheadhousing.com, facebook.com/hammerheadhousings
or contact HammerHead Housings: 620 E. Riley Thompson Rd., Muskegon, MI 49445, at (231) 740-5534.

First Batch Of Production Camaro HammerHead Castings Off To Machine Shop

Happy New Year! The Holidays are officially over and everyone is back to work. Here are some shots of the just poured first batch of Camaro aluminum HammerHead 12 bolt differential castings fresh from the foundry and on their way to the machine shop. Soon they will be under some of the baddest Camaro’s in all the land. 🙂

HammerHead Housings

HammerHead Housings

HammerHead Housings

Camaro HammerHead Housing Debuts At 2011 PRI & IMIS Shows Thanks To The Driveshaft Shop and Moser Engineering

Fred Lee HammerHead Moser

Fred "Skip" Lee creator of the HammerHead Housing proudly poses with his creation at the Moser Engineering booth - PRI Show 2011 Orlando,FL

The Camaro HammerHead Housing had it’s official and long awaited coming out party last week at the 2011 Performance Racing Industry Trade Show. Skip & Jeff Lee of HammerHead Housings were on hand to debut the HammerHead which was on display at both The Driveshaft Shop and Moser Engineering booths. The Driveshaft Shop had the HammerHead fabricated prototype, plastic prototype models and the machined cast aluminum housing, as well as an unmachined cast iron housing.  Moser Engineering had an aluminum & cast iron housing on display, along with axles and a carbon fiber driveshaft from The Driveshaft Shop. Lots of people stopped by both booths and we had the chance to meet and talk to people from General Motors, Mopar,  major performance companies, distributors, and install shops, as well as some friends from the Camaro5.com forums who have been following the progress of the project. People were very excited to see the HammerHead Housing for the Camaro come to life. Power TV also recorded a video about the HammerHead for the Driveshaft Shop which you can see below.


Continuing on it’s promotional tour, this week the Camaro HammerHead Housing will be on display at the International Motorsports Industry Show (IMIS) in Indianapolis at Moser Engineering’s booth #743. So if you’re at the show, check it out in person. They have an aluminum & cast iron housing plus The Driveshaft Shop axles and carbon fiber driveshaft.

For now, check out some of the photos from PRI below.


Skip Lee and Rob Moser

Fred "Skip" Lee of HammerHead and Rob Moser of Moser Engineering pose with the Camaro HammerHead housing at the Moser Booth - PRI Show 2011 Orlando, FL

HammerHead Moser

Camaro HammerHead on display at the Moser Engineering Booth at PRI 2011 Orlando, FL

HammerHead Prototype 2

Camaro HammerHead Prototype on display at The Driveshaft Shop Booth. Imitators beware. HammerHead is the original. - PRI Show 2011 Orlando, FL

Skip and Friends

Fred "Skip" Lee of HammerHead Housings with Patternmaker friends Chip Furst & Chris Thompson - PRI 2011 Orlando, FL

Fred "Skip" Lee and Jeff Lee of HammerHead Housings pose with the Camaro HammerHead Housing and prototypes at The Driveshaft Shop booth - PRI Show 2011 Orlando, FL


It’s A Reality! Camaro HammerHead IRS 12 Bolt Housing Casting Photos

It’s a REALITY! The first Camaro HammerHead 12 Bolt IRS housings have been cast in Aluminum and are now at the machine shop getting fixtures made. If you would like to see the HammerHead in person, Fred & Jeff Lee will have an unmachined casting with them at the LSX Shootout October 7-9, 2011 in Indianapolis, IN. Call Fred at 231-740-5534 to connect. But for now…gawk at these great photos!

Photos by Sarah Lee Photography

HammerHead Prototype Photos


Fred “Skip” Lee of ET Enterprises poses with the fabricated prototype of the HammerHead rearend housing for 2010 and up Camaros with independent rear suspension. This unit is currently being tested in Jim Barber’s CARS 1000HP 2010 Camaro which is scheduled for display at SEMA 2010 in November.

Here the prototype is being fitted with stubs from GForce1320 in Wichita, Kansas (Photo from Camaro5.com Forums)