Awd traction - RWD won't push as FWD does

[titogs95]

Well, Recently I put a tranny on it. An used one, As well I have polyurethane insertion mount and SBR 3500 clutch kit. Everything else is stock.

I am having a confusion:
Before, I hooked up all that . I could launch and all that AWD stuff.
Now, whenever I want to launch only my FWD spinns like crazy and the rear wheels doesn't do anything. :thumbdown WTF it is an AWD Should be 50:50 power distribution, right?

Also by the end of 1 st gear my wheels star spinning. what a traction problems . :thumbdown

But whenever I am driving I slam on the gas in second gear, the car start pulling real hard but I fell a lot of torque steer. It start going side to side.

What do u thing I should check the T-case to see it got hooked up right? is the tranny?Even thought I put on the lifter and we make sure that all the wheel were spinning and it did. what is going on. Does this happen to any of those AWD out there? Remember I have no LSD on it.
Stock 3 bolt rear end.

What do u guys think????

Please reply, I have a 30 day warranty on th tranny and I want to make sure that it might be the problem.

 

[JrCRXHF]

i would check out the center diff it might be sending power to the rear.

 

[kelvinb]

i would check out the center diff it might be sending power to the rear.

do what he said

 

[titogs95]

Ok, But what should I be looking for? Leaks, loose nuts or not inserted at all?
How should I check that is is working good?

BTW thanks for the reply!!

 

[TargeT]

Ok, But what should I be looking for? Leaks, loose nuts or not inserted at all?
How should I check that is is working good?

BTW thanks for the reply!!

check for fluids first get on some ice or gravel if you can and have someone watch your rears as you drop the clutch, or slam the gas

if your rears aren't spinning then you need to pull the center diff 'n have it checked.

 

[Intrusive97gsx]

Sounds like the center diff which is located inside the transmission. The good news is that the diff can be removed without taking the tranny out of the car but I don't know if that's something you really want to get into.

 

[97TSIAWD]

Since you have a 30 day warrenty and something is obviously wrong with the transmission, go ahead and take it back or have them fix it. Might as well use the warrenty while you have it.

 

[Intrusive97gsx]

Since you have a 30 day warrenty and something is obviously wrong with the transmission, go ahead and take it back or have them fix it. Might as well use the warrenty while you have it.

What he said, I didn't even see that you had a warranty.

 

[TSiWarrior]

Mine does that too, if i hit the gas it takes off to the left by almost 3-4 feet. My front tires also SMOKE out, I got nittos all the way around. My car just died today, I explained it in the problem forum, if ya know alot about DSM's please stop by and read, I need some help!

 

[DevilSperm]

if the diff is bad it will look like mine

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[freak4jesus_bt]

I'm not for sure how the transfer case hooks up. But aren't there 2 different transfer cases, a 23 spline and a 21?? spline. Could that be the problem?? Just a suggestion. Good Luck

 

[TargeT]

I'm not for sure how the transfer case hooks up. But aren't there 2 different transfer cases, a 23 spline and a 21?? spline. Could that be the problem?? Just a suggestion. Good Luck

there's a transfer case hooked to the transmission (this could be a problem too check it for fluid) and one in the rear

the spline count depends on a lot of factors, ive worked with 22 and 23 spline counts not sure if there's a 21 version out there..

 

[titogs95]

WOW thanks for the reply!
I know is going to sound really dumb (It is stupid question ! ). But how do I know if I have , a 23 spline , 22 or 21 spline transfer case?

 

[jasonlee]

count the splines that go into the transfer case...

its pretty hard to get the wrong one on.. cause if they are different , they dont slip on too easy... (dont ask how i know)

j

 

[jtmcinder]

Remember I have no LSD on it.

Sit down and digest what that means. No limited slip on the center diff, lots of weight shifting to the rear, 50/50 torque-split center diff ... what did you think would happen?

- Jtoby

 

[Maglin]

The center diff is for your Front wheels if I'm thinking properly. The VC is what transfers power to the X-fer case and thus the rear. If you tow your AWD with either the front or the rears on the ground your destroy your VC and basicly turn your car into a FWD until you replace the VC. They are fairly pricey. I just had my tranny rebuild by TRE and they check all VC's and if they are out of spec by more than 10% they recomend replacement.

I also had a spool installed in my center diff. So my front tires are now locked. Excessive Torque steer is a sure sign that the VC isn't working. I went with a spool so I won't experiance any torque steer going down the track.

 

[ACM]

The center diff is for your Front wheels if I'm thinking properly. The VC is what transfers power to the X-fer case and thus the rear. If you tow your AWD with either the front or the rears on the ground your destroy your VC and basicly turn your car into a FWD until you replace the VC. They are fairly pricey. I just had my tranny rebuild by TRE and they check all VC's and if they are out of spec by more than 10% they recomend replacement.

I also had a spool installed in my center diff. So my front tires are now locked. Excessive Torque steer is a sure sign that the VC isn't working. I went with a spool so I won't experiance any torque steer going down the track.

Not quite. The centre diff supplies power equally to the front and rear wheels, until one end starts spinning. The VC limits the rpm differential between the two output shafts. When the VC wears out the centre diff functions as what it actually is - an open diff, so as soon as one end starts spinning all the power transfers to that end. IIRC replacement VCs are around $100 hardly expensive...

Charles

 

[TSiWarrior]

wouldnt locking your front tires make the car turn like a 4x4? and if my rear diff is gone would that cause the car to be immoble? my car broke the other day and the rear end seriously grinds yet the car doesnt move. I'm hopeing it's something simple. Someone told me it's more than likely a stuck caliper but if it was woudlnt that tire not move at all? because I was able to get the car to move if i revved to like 5 grand. The clutch only has 600 miles on it and it has copper 6pluck, fluid in the clutch is good so I dont know what the deal is.

 

[Maglin]

Locking the center diff makes all the wheels turn at the same rate. Makes for really horrable hop when you turn, but straight line performance is supurb. And your right about the center diff. I don't know what I was thinking. But wouldn't a broken VC still cause the rear output to be almost nothing since the center diff is open? I only ask cause of the whole towing thing that destroys the VC.

 

[titogs95]

Man, this is more serious of what I thought!!!!
I guess it is true! whenever you buy and AWD you got to deal with the whole drivetrain.

Anyway, I want to say tnat on monday, I am going to go to the guy that sold me the tranny and I will see what deal I can get with him. Obviously is the tranny. Because I didn't had that problem with my old tranny. I will be talking about this disscussion. And thanks to you I have some back ground. thanks DSMTUNERS!

DAMN!! all I wanted is an AWD turbo

Well I got to face it I HAVE A DSM! SO I got to deal with it.

I hate DSM but I can't leave with out!!

 

[jasonlee]

I may be way off base here but i just wanted to ask a question about locking the center diff.. either with a spool, or welded center..

a 50/50 split in power is for sure, no worries there.... but when you say it will hop or slip the tires when turning, thats in question to me.

if you have a limited slip front, and stock rear limited slip... (or stock front and rear)..... wont that negate any wheel hop?

you would think that it would all allow the inside tires and the outside tires to turn at different speeds becaus the front and rear are not locked.. just the center is...??

 

[titogs95]

WEll here is the deal!
I lifted the car in 4 jack stand. I maked sure it was even. IT started the car and shifted in 1st gear. All the tires started moving. I am like WTF! it works?
But, by that time me and my friend put our food (with out too much pression) in the rear wheels. We suddenly saw that the power was weak and a LOUD SLIPPING noise started to comes up under the tranny or t-case (I never heared before)
WE saw that the rear shaft stopped and didnt move (while we lighted had our foot on the rear wheel.) when we remove our foot it woorked fine, with out noises.
I am aasuming that the T-case is sllippering with the shaft. BTW the tranny is like 70,000 miles (that is what the seller said)

So I am finding a way to take the t-case off tomorrow. (damn, I need a place and real tools)

so, what do u think? is it the T-case? or the shaft?

 

[titogs95]

Well!!!! how do I start!
Ok. I finally took the t-case out. We notice the spline was woreout. The number of spline were different from the tranny. SO the tranny is different model!!. (but I found out it had only 65,000 milles on it ) So I put in the right T-case(PITA). It fits in perfect now. AS SOON AS I Hit reverse and moved for a couple of feets my rear wheels locks!!!!
WTF now!!!!!!
So, we are coming with the conclussion that the rear end got ####ed!!!!!
""WHY= because I have been driving the car for a while at different speed. and the rear shaft wasn't having any the power at high speed. The wheels shaft were turning all the time. So, because all that the rear end got damaged! (the limit viscous blah blah)"" >>>>> Does it makes sense??????<<<<<<

I wish i can get ahold of a 4-bolt!! ; but My friend only has a 3 bolts laying arround and I need my car back on the road!!!!
Anyway maybe today and deffinitly tomorrow I am putting back all the rear end.

I will post another update.

 

[titogs95]

Ok I need a reply here ASAP!!!

Here is the deal. AS you can see in the other posts.
I changed the t-case and went in reverse for a few feets and it locks up the rear end(well actually slow it down).So, I decided to change the rear end (btw it was a 3 bolts with LSD, that is what the sticker says) I did the swap and the same problem persist. But the rear driver door locks up this time! It won't even move. Also I notice that It doesn't lock up or slow down until I turn. otherwise it moves a little bit.

At the same time I hear my breaks (by the time I step on the break) making a deep sound (not like the one when the pad is wearing out). It never happened before I changed the t-case.

DO I have a broken center diff or the t-case is bad????
Is possible that my center differential broke off because it didn't have any load on it? (because the old t-case was wear out, different spline) Can it run with out a load on it???

I don't think my old rear end went bad because the fact that it didn't have any power from the t-case and the wheels were spinning all the time.

There is a similar thread here but his solution don't solve my problems.
WTF?

Please help me!!!!!!
I need answers!!!!!!

I want that #$% car moving!!!

 

[slvrstingray]

okay, i have a few questions for you.

1. did you put in the proper axles when you put in the LSD rear?

2. The transmission that you bought, would it happen to be out of a galant gsx?

3. Have you checked the Viscous coupler yet?