[Major_Lee_Slow]

If you've been following the Third and Fourth Gen F-Body Differential R&D 2012 Thread then you know that I've been working with Quaife to make a differential for 3rd and Fourth Gen F-bodies. I think we've got enough info and we've checked other manufacturers as well and it sounds like Quaife is the only game in town for a Helical Diff.

Quaife's diff will have a 3:1 bias ratio using 37 helix angle. It will be backed by Quaife's lifetime warranty which even covers race usage. The estimated cost is $1050-$1100/unit. Once 10 people express interest, I'll get the final pricing. We'll need orders for 15 units for Quaife to start production. Lead time is 8-12 weeks.

The group buy will go through me and when it comes time to pay for the units payment will be made to MLS Motor Racing (my company) via paypal. In the interest of full disclosure I want everyone to know that I'm not making a dime on this deal and I'll be paying the exact same amount as everyone else. Please keep in mind that I'll be on the hook for this deal if people back out after the order is placed therefore please be sure that you can/will follow through if you commit cause my wife will kill me if I end up with $30,000 of diffs.

Per John's suggestion, I would like to collect payment at the time we place the order.

Group Buy Members:
1. Eric (me): Committed
2. Brian (Too Z Max)
3. John Crouse
4. Mike P
5. Jason Swindle
6. Tony P.
7. Mark (Conemark)
8. Phil (chevy053)

This post has been edited by Major_Lee_Slow: Mar 7 2012, 07:25 AM

[Unbalanced Engin...]

That sounds good to met Eric. Thanks for the effort on your part!

Todd, my educated guess is that they're using harder, more durable steel alloys which will also be harder / more expensive to machine.

Jason S.

[dailydriver]

They DO have a GREAT rep as a manufacturer of pure race diffs and gearboxes of all sorts (mostly for Euro/Brit racing series classes, but also for Vette and Viper diffs).

I have no idea what the actual grade numbers of the steel they are using are, nor which heat treatments they use to ensure the strength/longevity of their diffs, though. (IMG:http://www.frrax.com/rrforum/style_emoticons/default/dunno.gif)

This post has been edited by dailydriver: Feb 27 2012, 08:43 PM

[Major_Lee_Slow]

We're kind of stuck at 7, we need a few more people. If you're reading this and you think you know someone who maybe interested please reach out to them.

[Chevy053]

You can count me in and put me on the list.

[Major_Lee_Slow]

Woohoo, that makes 8. Almost there!

[TOO Z MAXX]

Just curious, is this posted anywhere else?

[Major_Lee_Slow]

No I only have it posted here

[MikeP-99Z]

I posted a link to it on the CMC Forum.

[01badz28]

I'd love to get in on this, but I can't make a commitment until the end of March (I need to see what my 1st quarter numbers at work look like).

[Major_Lee_Slow]

I'm going to keep this group buy open until the end of March. If we don't have enough people signed up by then I'm going to close this group buy.

[Rudolph]

MLS,

Please, do not close the thread. There are some guys, like me, that are waiting a few days more. In my case, here in Mexico, by the end of april, after tax declaration to IRS (SAT here) , gives you back money as adjustment. I really want to be in the list, but I can not by this month.

Please, consider 30 to 35 days more, I am sure 3 to 4 more will come into the list, based on the comments written, and maybe on those extra days, the 15th will be reached.

Thanks.

Rodolfo Lara Pohlenz

[TOO Z MAXX]

MLS,

Please, do not close the thread. There are some guys, like me, that are waiting a few days more. In my case, here in Mexico, by the end of april, after tax declaration to IRS (SAT here) , gives you back money as adjustment. I really want to be in the list, but I can not by this month.

Please, consider 30 to 35 days more, I am sure 3 to 4 more will come into the list, based on the comments written, and maybe on those extra days, the 15th will be reached.

Thanks.

Rodolfo Lara Pohlenz

I agree, keep it going a little longer, we are so close. I might even be willing to buy a second one to sell later to someone else.

[Major_Lee_Slow]

Ok, we'll keep it open for another month and lets see what happens.

[mercutio]

I'm definitely interested. With that said, forgive me for asking: why should I assume this diff, at twice the price, will last longer than the Eaton and Auburn Racer that my 4th-gen has already destroyed in short order? That's a serious question, not a smarta$$ one. At this point, if I can't find a diff that will live for at least an autocross season (10-12 events) before a rebuild, I'm probably going to sell the car. I'd like this to be the answer, but before I put money down I figure mentioning my concern is reasonable.

If you guys can alleviate my concerns, consider me in.

[roostmeyer]

I'm definitely interested. With that said, forgive me for asking: why should I assume this diff, at twice the price, will last longer than the Eaton and Auburn Racer that my 4th-gen has already destroyed in short order? That's a serious question, not a smarta$$ one. At this point, if I can't find a diff that will live for at least an autocross season (10-12 events) before a rebuild, I'm probably going to sell the car. I'd like this to be the answer, but before I put money down I figure mentioning my concern is reasonable.

If you guys can alleviate my concerns, consider me in.

I’m just a bystander, but this diff will use the angle of the helix gears to create the high TBR ratio. The T2R from my understanding has a clutch pack that provides additional TBR over the standard T2. Without any clutch pack the diff should have a constant TBR once broke-in without anything to wear out. At some point the gears themselves will wear out of course, but in an OEM application this would probably be 200k+ miles on the original dino oil type situation.

Quaife knows their stuff, and I'd trust that they can create a lasting diff.

[TOO Z MAXX]

I'm definitely interested. With that said, forgive me for asking: why should I assume this diff, at twice the price, will last longer than the Eaton and Auburn Racer that my 4th-gen has already destroyed in short order? That's a serious question, not a smarta$$ one. At this point, if I can't find a diff that will live for at least an autocross season (10-12 events) before a rebuild, I'm probably going to sell the car. I'd like this to be the answer, but before I put money down I figure mentioning my concern is reasonable.

If you guys can alleviate my concerns, consider me in.

Remember it has a lifetime warranty, and that includes racing.

[Rudolph]

MLS,

Please, now, count me in. Ready to be in the list.

Rodolfo

[mkm]

Count me in got a great tax return, that should make 10.

Mark

[mercutio]

Okay, I'll bite. Count me in.

[Major_Lee_Slow]

Wow, we've got 11. Ok let's see if Quaife will move forward with 11. I suppose I should message people who signed up earlier to confirm they are still interested. Stay tuned.