Originally Posted by Puddymod

We fully cryogenically treat the rear, that is every part is cryo treated that can be.
Fully built and reinforced housing that can hold upwards of 200,000 PSI stock is only 60,000 PSI
New bearings, seals, and hardware are used
Fully de-burred and polished gears for smoother, cooler, and more quiet operation.
Black phosphate finishing (same process used in firearms )
Solid custom sleeved pinion (no crush collar) we use 10/20 mandrel steel (seamless)
Fresh paint on the housing
Precision balanced assembly of rear using better than factory tolerances.

The PuddyMod solid steel sleeve is made of 10/20 mandrel steel it is seamless and will not distort or compress. It is turned and machined by hand in several lathes until the proper size and fit is achieved. Each sleeve is made one at a time and is unique to it’s housing and gear set. We do not shim the sleeve, we custom fit it to your rear.

Solid steel sleeves have been around for a long time. They have been used in high performance differentials for many years by top race teams that are serious about finishing and winning.

In high horse power and hard track driven cars these sleeves are a must have, or you may find your self sitting on the side lines with a blown diff, watching the competition pass you by.

The only gears made state side for our car is Richmond 4.56/57 gears. The 3.91, 4.10, 4.3, 4.44, and 4.77 gear sets are all OEM for one car maker or another, they are made in Japan.

PuddyMod housing good for 200,000 stock is 60,000 PSI $1,150

PuddyMod custom solid steel sleeve distance collar
$200 installed

PuddyMod Balance & Blueprinted precision assembly Comes with pics and build sheet
$350

SubZero cryogenics service
$135

Polished ring and Pinion gears
Black phosphate finished $100

Stock 4.10 gears $250 (used) when available best for FI thumbsup.gif

3.91 gears $market price

4.44 gears $market price

4.77 gears $market price

Richmond 4.56 gears Best for N/A
$market price

Bearings, seals, shim, and hardware
$175

Stock LSD
$350

Modified rear cover
$250

Core return credit for good complete rear differential
$400

Bad or blown core return $200

Nothing is 100% bullet proof , even in the pros of NHRA drag racing brake stuff all the time. If it were possible to make a rear unbreakable these guys would have it.

Our rear fails for a few reasons, over stressed cast iron bearing caps, crush sleeve compression during hard launches, and driver error. Even if the cap dose not brake it will stretch and distort causing improper gear aliment, then boom gear or LSD failure happens.
I have received good cores with bearing cap bolts that were twisted from the caps stretching.
I have also seen pinions with little to no turning torque due to crush sleeve fatigue.

All gears whine even if it's not that loud. The stock 4.10 will wine you just have to listen for it. The amount of whine will depend on how the gears are setup or how aggressive the gear is. I will take many days with one rear if need be to get a pattern and backlash I can be happy to put my name on. I have had great luck with the Richmond 4.56 gear sets.
The amount of whine that they produce when setup right is not bad, it is less loud than the exhaust and is only present at certain RPM ranges
I have 4.56 gears in my car (third set) and like them best.
This is what we do,

Originally Posted by 93celicaowner

im pretty sure hes talking about East coast Z

Originally Posted by all4sr's

the owner is pretty damn cool, he lives right around the corner from me, they usually have some sexy Z's in the driveway, his son has an extremely sexy g35. They are def. all good people and they know what they're talking about.


and what the hell happened to getting rid of the s2k mang?

Originally Posted by I spy Psi,No?

I can't get rid of it. I'm too attached. I bought a homedics pillow for my back tho haha.

Originally Posted by all4sr's

lolz, dont lie, your back pains are from teh buttsecks and you bought a doughnut

Originally Posted by I spy Psi,No?

-rep for telling when I told you not to.

Originally Posted by Fabrik8

I like the mods that they're doing, but it seems like an awful lot of money to throw at a poor OEM diff design.[/I]

Originally Posted by all4sr's

in all seriousness though, GL with the swap/new rearend

no pun intended

Originally Posted by I spy Psi,No?

and I'm very well sure you already know, but for the people who don't when you don't run the half shaft spacers and you are lowered the angle of the Inner cv joint is almost in a bind. What happens is when you lower it a decent amount the halfshaft is stretched about 10mm on both sides. So what the spacer does it bring it 10mm back out so they aren't stretched and will have a higher longevity.