BadAss SRT-Z - 2.4L / A568 - Update!!!

[cordes]

Very... all the dog teeth looked good even. Amazing what a few passes will do, LOL!

I was afraid of that. Do you think it's time for that Al support plate to be made out of steel? Added webbing on the case to stop it from twisting?

Do you think the missed shifts are causing the input and main shafts to try and jump out of the case by spreading them apart?

[MiniMopar]

Missed shifts won't do that (no torque). It's when he hits the gear that probably pisses it off. The most force on the case will be 1st or 2nd gear (depending if he actually hooks in 1st). After that, the input shaft loses more of its mechanical advantage to "climb" the gears of the main shaft. Those forces are what makes the shafts want to spread. Add to that the weird torquing that happens when the axles are trying to swing the whole drive train by the diff case into JT's lap during the launch.

Now that I said all that, I wonder if your super-solid motor mounts might not be absorbing enough of the "bang" between gears.

[BadAssPerformance]

Good explanation. Yeah... solid... the only thing absorbing said bang is the tires

[Reeves]

JT, Do you still use 5th gear?
I was planning to remove mine and make a new end plate out of some aluminum billet. I was thinking:
1) I don't really need 5th
2) It's more crap turning that could save some weight
3) The trans will be shorter, lighter, easier to install/remove
4) I can make new end plates that may help the twisting going on

[BadAssPerformance]

Yeah, I thought about that... but, its still a street car
...and I dream of finding out what it would do high end

[Reeves]

Yeah, I thought about that... but, its still a street car
...and I dream of finding out what it would do high end

With the 3.05FD and 555 gear set, I don't really need 5th no mo, even on the interstate!

[Rampage16V]

That's just a small crack! LOL And thats at the other end of the trans from the engine don't think the fact that its a 2.4 would too much. Was just thinking it cracked simply because there isn't much material there. You might want to use some stud and bearing mount loctite in that spot too when you put it together. I have seen non cracked end plate bearings spin there. Might make it tough to get off later though.

[Rampage16V]

Hey JT If you want the rest of that trans its still here

[BadAssPerformance]

Good idea on the crack and thanks Dean, a fresh case might be needed

[glhs0426]

Is a 568 case really that much different from a 523 case aside from the crank sensor mounting pad?

FYI, the parts book shows the bearing support plate is the same 523/543/568.

John

[135sohc]

Is a 568 case really that much different from a 523 case aside from the crank sensor mounting pad?

FYI, the parts book shows the bearing support plate is the same 523/543/568.

John

The case is the same. The 523/543 both have the cps mounting boss, just not finished.

[86Shelby]

Yup they are the same. I'm using a 523 case in my R/T after machining the crank sensor hole.

[Shadow]

I had heard that the difference between 555/520 and 568/523 cases was that the 555/568 cases were hardened by heat treating.

[BadAssPerformance]

Not sure how hard you can get A356 or whatever common cast Al they are made of? Where'd you hear that, Ed Peters?

[Shadow]

Not sure how hard you can get A356 or whatever common cast Al they are made of? Where'd you hear that, Ed Peters?

Can't recall. Was several years ago and I was getting a trans built and we needed a case. Someone somewhere told me the 555/586's had hardened gears and hardened cases.

We ended up going with a 523 case anyways because I really didn't think it would make a difference at 350WHP and in the last 5 years or so it hasn't.

[cordes]

Can't recall. Was several years ago and I was getting a trans built and we needed a case. Someone somewhere told me the 555/586's had hardened gears and hardened cases.

We ended up going with a 523 case anyways because I really didn't think it would make a difference at 350WHP and in the last 5 years or so it hasn't.

I think it says something to that affect in the FSMs doesn't it?

ETA: No, it just says that the trans is stronger and has a die cast case.

[MiniMopar]

It was something Ed Peters said. Then he went off on some tangent about how New Process was storing the castings in the parking lot or something causing them to crack...or something like that. This was in the "Phoenix Tapes" I believe.

[Reeves]

It was something Ed Peters said. Then he went off on some tangent about how New Process was storing the castings in the parking lot or something causing them to crack...or something like that. This was in the "Phoenix Tapes" I believe.

I have those tapes....but no vcr.. LOL.
Oh wait....I think I have a VCR in my *excercise* room. Haven't seen that in a LOOONNG time!

[BadAssPerformance]

Is that where you do your Jane Fonda workouts?

[Reeves]

Is that where you do your Jane Fonda workouts?

But Fonda ain't got a motor in the back of her Honda