Here's the background:

GSR tranny (94-95)
ITR LSD (94-95 GSR tapered diff bearings)
You could probably even say GSR diff for relative purposes.

Situation:

Say you set the diff into its housing, and then slap the countershaft, input shaft, reverse gear, and even shift forks and shifter mechanism into the clutch housing tranny case. You can spin everything by hand relatively easily... it all meshes together.

But. And this is a BIG 'but'... will the diff (as it sits without the top of the tranny casing tightened and shimmed properly) rock back and forth? The top of the diff (where the ring gear sets) probably rocks back and forth maybe 1/16th - 1/8th of an inch. Is this normal???

When you shim it properly... does it take this play out when torqueing down the tranny casing? Or does it remove this play even without shimming it properly?

I ask these questions because I think the whirring I heard in my tranny is the diff moving and loading against the gears under deceleration. And not a bad bearing. Because when you press the diff to rock it and load it... it rubs the gears and is tough to turn the shafts.

Any input is appreciated. Thanks guys!

 

Can't believe no one responded.

However, I found that the diff was a bit on the loose side. 15 in.lbs. vs the recommended 18-26 in. lbs. So I'm going to shim it to the average 22 in. lbs. like stated in the Helms. And hope she's good. I can't imagine that the diff being this loose could have caused my excessive pulling to the right under throttle or bearing noise under deceleration.

Also found that I installed the spring washer and washer for the input shaft upside down and that the oil guide plate that sits above the input shaft was pressed up and never seated properly into the bearing/input shaft.

So hopefully rectifying these problems will end my horrible tranny suffering. Cause if not... it could be suspension or axle related.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HondaBullSQ &raquo;</TD></TR><TR><TD CLASS="quote">I ask these questions because I think the whirring I heard in my tranny is the diff moving and loading against the gears under deceleration. And not a bad bearing. Because when you press the diff to rock it and load it... it rubs the gears and is tough to turn the shafts.
Any input is appreciated. Thanks guys! </TD></TR></TABLE>
when does it get louder, when you accelerate or when you get of the gas while in gear? with the tapered bearing, if the diff had a lot of play in it it would show on the bearing and the racer(what holds the bearing)! you would see dark spots, on the bearing rollers! i'm thinking, that your input shaft bearing(as well as others) is going bad.

 

None of the bearings have any play in them. None. All of the bearings spin and appear to be in prestine condition. The onyl thing I could think of is if just little flakes of aluminum/steel are just in the bearings making them sound that bad.

Well.. just ordered the shim and the oil guide plate. So once they get here Monday, I'll be putting the tranny back together on Tuesday night. And if it still makes the noise... I'm just gonna sell everything and get a GSR or B16 tranny.

Bump for more input.

P.S. Related to the original post. I didn't realize that the diff will rock seeing as its a tappered roller bearing. So disregard my thinking that I might have needed the aluminum 'fins'. Cuz I'm an idiot.

 

you could always change the diff bearings, to the box style and shim them to spec! but if you can shim those tapred bearings, to get 18+ lbs it would be to your advantage. many people try to get away from those bearings, as you need special tools to measure the lbs for the diff!

 

Special tools... heh... we just took a piece of steel and welded a 3/8" socket to it so we could use a 3/8th in. lb. torque wrench. lol.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HondaBullSQ &raquo;</TD></TR><TR><TD CLASS="quote">Special tools... heh... we just took a piece of steel and welded a 3/8" socket to it so we could use a 3/8th in. lb. torque wrench. lol. </TD></TR></TABLE>
that's special enough, they don't sell that in the stores BTW post a pictures of your special tool, it might help others trying to do the samething.

 

OK... so the tranny still pulls to the right and still 'whirs' under deceleration. I'm just gonna assume there is enough play in the diff for this to happen. The bearings all seem fine... I'm so pissed right now.

 

The countershaft gear has a slight bend/debris mark on a tooth. Only one though... not sure why this would tighten everything up all the time when spinning the input shaft by hand... but perhaps that 'slighty bent' tooth on the final drive/ring gear is enough to cause my 'whirring'.

Because I figure a piece of tranny case (aluminum) was lodged between ring gear and final drive(Countershaft). Possibly messing up the needle bearing for the countershaft... but there doesn't seem to be play in it.

 

I just went and bought another GSR tranny. Pulling to the right was the wheel bearing actually. Replaced it... it's all good. I'm so freaking broke right now it's not funny. Wallet is feeling a bit light.