JohnnyP912

a very common problem with our cars is the lack of strength in the rear diff... after numerous launches it will eventually break..

Im considering buying the puddy rear 4.44 FD from ben @ $1840... with the 400 Core exchange.. It seems very reasonable considering that every part is either cryotreated or reinforced somehow...

My question is because i am going FI .. What is the next thing to break after numerous launches .. what is the next weakest point on the drive train.. Is it the drive shaft? The rear axles? or are those parts still strong enough that the rear diff still remains the weakest link? Anybody out their have over 450 to the wheels and broke something other then the rear diff?

If it is the drive shaft and or rear axles can anybody recommend a better then stock part from the aftermarket?

Thanks Guys
Sorry iF this has been answered before.. i try searching and there are plenty of great threads out there packed with good information but i always seem to pull up useless threads with incomplete answers

Soul Coughing

i have a 3.90 puddy diff and have run it for almost 10k, making 370ft/lbs of torque. I have had no issues with the diff! Depending on how you drive, you'll break axles (like me) or the transmission next. My stock diff lasted almost 50k miles of hard boosted miles, so it doesn't mean your diff will break right away if you aren't really hard on it. Other people have broken their diffs stock, so your mileage may vary.

Emil St-Hilaire

Clutch...

zoomspeed05

Transmission bro after the diff that's the weakest link considering you have a upgraded clutch already

JohnnyP912

the clutch will break? or just be burnt out quicker?

ace123

if you do puddy, the axles will go next. they're cheaper to break than a transmission, and if you start seriously approaching breaking your tranny you probably should consider selling the car. ...or make a great build thread for us to all enjoy.

ace123

around 350whp-ish the clutch simply won't hold the power. supposedly you will get slip when driving at WOT.