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Having my Hammerhead 12 Bolt Center Section installed in my 1986 Dana 36. It requires a Dana 44 Batwing. It's being done at Heisler Automotive in Hamilton, New Jersey is doing
Last edited by yedister; Aug 8, 2015 at 12:30 PM.
Reason: Forget to add
Call and get a price. http://www.streetshopinc.com/
You have to call and speak to Tray, it’s not listed on the website
HammerHead 12 Bolt based Aluminum Differential Housing
C4 Corvette Flange Pattern
5.5 Wide Pattern Mount with Four 0.56 Thru Hole; 2.527” Bearing OD, 2.570” Seal OD; Bright Silver Nitro –Plated In/Out
Build HammerHead 12 Bolt Rear Differential Assembly to Include:
New Eaton 30 Spline Positraction Unit
3.73:1 Gear. Bearing kit, Seals, and Pinion Yoke
Billet Chromoly Axle Stub for 10.7W HammerHead 30 Spline Long Side to 1350 Flange
1350 U-joint Flange, 4 Bolt for 10.7 Hammerhead
Billet Pinion Spacer for C4 Torque Arm
The spacer had to be cut into 2 because it was too tall to fit in the C-beam on one side. Half on top and bottom was what is needed to center the Hammerhead for driveshaft alignment
A prep Dana 44 is not worth the time and money because it is still a weak rearend compared to the hammerhead. There has been plenty of members tried modified Dana 44 and they were not reliable for long term use with 700 + horsepower.
Yours also isn't completed and "on the street" - you've yet to mention what's required for the half-shafts, I'm sure the drive-shaft is a specialty piece also and the attachment of the rear to the C-beam I'd say is "questionable".
There's way more to the project than you mention. It's interesting no doubt but until done and it shows it's stuff it certainly can't be considered a "go to".
It's very easy to see potential issues with the camber brackets and lower arms. Until the angle of the half-shaft to spindle/knuckle is resolved and some other incidentals it's difficult to say any more than "it's interesting" and likely shows some potential.
I'm pretty sure the Dodge Viper ran (or possible still runs) the Dana 44 center section. With larger tires and an engine that develops massive torque I fail to see how it can't handle nearly all of the practical applications where an IRS is optimal. (That being the key point I suppose)
Like the above poster has mentioned there are a ton of peripheral parts in question that I feel will never allow you to use anywhere close to the structural strength you think this center section has and frankly, where an IRS system shines the massive HP and TQ required to destroy the Dana 44 center section (like a 3000 LBS road race car with 345's on it) is not actually used. Just my .02, neat product but without a lot of other parts being developed and engineered I don't see the use.
If you want to post up the FEA analysis of the center section under your purposed loading I would love to see where this housing is outshining current designs.
Yours also isn't completed and "on the street" - you've yet to mention what's required for the half-shafts, I'm sure the drive-shaft is a specialty piece also and the attachment of the rear to the C-beam I'd say is "questionable".
There's way more to the project than you mention. It's interesting no doubt but until done and it shows it's stuff it certainly can't be considered a "go to".
It's very easy to see potential issues with the camber brackets and lower arms. Until the angle of the half-shaft to spindle/knuckle is resolved and some other incidentals it's difficult to say any more than "it's interesting" and likely shows some potential.
Missed adding this picture, This is the final C-Beam attachment
Driveshaft is going to be steel with 1350 U-Joint, the stock half shaft to spindle/knuckle, camber brackets, lower arms are suppose to fit/align correctly with the stock components. That's how the Street Shop made it. The Street Shop uses the same set up on their C4 chassis that they sell. Since my car has a Gear Vendor already the C-Beam had to be modified differently.
Good for you for trying something different to over come the short comings of the D44. I had to go to Ford 9" 35 spline axles and spool to make the rear end live in my car. I broke about everything in the rear end/IRS when I started running 10's.
Here's how my Dana 44 held up for me.
Last edited by tpi 421 vette; Aug 30, 2015 at 04:29 PM.
Thanks, didn't want the solid axle. I love driving tight in the curves way too much. Ultimate goal 9's with turbo, trying to have a nice dual purpose car. When I accomplish it I will have a R/T, Corvette R/T
Hammerhead 12 Bolt Center Section
