Nextelbuddy

i searched and found a post in the tech forum but i figured you guys would know a definate answer as well.

i have a screwed up gsr tranny. my ring gear and counter shaft are chewed up but everythng else is good to go.
i bought what i thought was another gsr tranny (S80) bit when i opened it up it has 64 teeth on the ring gear as opposed to my gsr ring gear which has 65 teeth on it. i counted each at least 6 times. so it looks like i bought a LS tranny intead.

i wanted to know since all i need is the ring gear and couter shaft can i just put the LS ring gear and counter shaft into my gsr tranny and keep all my gsr gears and syncros? is there anything special i ned to buy extra or anythign special i need to do? or is it as simple as just hainv my gsr gears and syncors put onto the LS counter shaft and bolting on the LS ring gear to my gsr diff?

also if i use the gsr gears on the LS counter shaft can i still keep my GSR main shaft with all the gears? or do i have to swap anything onto that as well?

thanx in advance....

Nextelbuddy

bump for morning crew.

also what can i expect from using LS final drive in a gsr tranny? am i going to lose a lot of acceleration and 1/4 time?

DaX

iTrader: (1)

Yes, you should be able to use the ring gear and countershaft in your GSR tranny, just be sure to swap everything over from the GSR countershaft onto the LS countershaft, and make sure you don't mix up the ring gears or countershafts.

If your case says S80, it's probably from a 94+ USDM Integra LS Special Edition. Count the teeth on the ring gear and count the teeth on the countershaft. (Ring gear teeth)/(Countershaft teeth) = Final Drive Ratio. It's probably going to be 4.266.

The rest of the ratios are as follows:

1st - 3.230
2nd - 1.900
3rd - 1.269
4th - 0.966
5th - 0.714
Rev - 3.000


Remember...Ring gear bolts are left hand thread.

Nextelbuddy

thanx a lot for the info.

does anyone know what having a ls final drive will do for me driving wise? will it make my gears longer orhurt my 1/4 mile times?

remember i am not doing this ls final drive for performance reasons i am doing it because i haveno otherchoice lol and am broke on money

DaX

iTrader: (1)

Your GSR tranny with the blown gears...it's an S80 correct?

Your LS tranny is an S80 also correct?

Go here: http://www.f-body.org/gears/

Enter your tire size. Axle Ratio is Final Drive.

Enter final drive and gear combination you want to know, along with your redline.

I can tell you right now you'll have a higher top speed, but slower acceleration.

Here are the gear ratios for those two trannies:

S80 GSR

1st - 3.230
2nd - 1.900
3rd - 1.360
4th - 1.034
5th - 0.787
FD - 4.400

S80 LS

1st - 3.230
2nd - 1.900
3rd - 1.269
4th - 0.966
5th - 0.714
FD - 4.266

DaX

iTrader: (1)

At the top of fourth [assuming 8500 redline], you're only looking at a 4mph difference between the two final drives [130 with the LS FD, 126 with the GSR FD]. I'd say you won't notice too much of a difference.

Nextelbuddy

so basically i shouldnt even notice the difference?

DaX

iTrader: (1)

I'm hesitant to say you won't notice the difference, but I think it won't be that bad. Go to that website, enter the data for the GSR tranny, then do it again for the GSR tranny with the LS final drive. You can compare numbers side by side that way [one chart will be on top of the other]. The speed differences aren't that different, but that doesn't mean the acceleration differences aren't going to be a little more different. Even still, I think it won't be that bad of a step down...the 4.4 FD will accelerate faster than the 4.266, but it's not like you're going to a 4.0 or anything.

not so civic

i am running a 4.26 gsr tranny. the ring won't bolt onto the gsr diff. you have to use a ls/b16 diff. if you decide to swap the diff you'll have to change out the bearings and shims. yeah just use ls counter and put the stack from the gsr onto the 4.26 countershaft. this is basically a ls 1 and 2 gear with 3-5 being shorter than ls, but longer than gsr. at 80 mph your rpms in 5th will be at about 3900-4000. if you don't feel like messing with this nsxbob has a 4.40 final for 60 bucks.

Nextelbuddy

yea im going to use the LS diff and the ring gear thats bolted to it already. im also going to use the LS counter shaft withmy gsr gears. then im going to bolt everything into the LS tranny case that the LS diff came out of so i donthavetouse shims oranyhting since the LS diffis going to be staying inthe case it came out of.

how does that sound

DaX

iTrader: (1)

Sounds good...just check the countershaft and main shaft heights...they are shimmed also.

Nextelbuddy

ok well i got the tranny back together and cant really tell a difference except on the highway 5th gear is about 1000 rpms longer. at 100 mph im crusiing at a chill 3800 rpms i beleive.

but now i have another problem. the input shaft bearing from my gsr tranny wasnt in real good shape it was clicking slightly when i rolled it a few times so i used the input shaft bearing from the LS and it rolled fine with no problems but now the tranny makes a slight whining noise unless i press the clutch pedal in and it goes away u can barely hear it but its there. other than that i cant hear it even when cruising the tranny doesnt make any other noises except when idleing until i press the clutch pedal in.

what could it be?

Sunrise City Rider

Throwout bearing...

Nextelbuddy

really? i read somewhere that whining of the tranny unless the clutch pedal pressed in was the input shaft bearing.. but i replaced that so you think its the throw out bearing?

what happens if the throw out bearing goes bad on me before i fix it?

DaX

iTrader: (1)

Throwout bearing would whine when the clutch pedal is depressed. It may have been one of your countershaft bearings.

Nextelbuddy

yea but i replaced those bearings with newer ones that were in way better shape then my gsr ones. my gse ones were clicking and kinda hard to turn and the LS ones turned just fine and did not click so i used them instead.

DaX

iTrader: (1)

Then I guess it could be the TOB...those things are weird sometimes. I'd have to hear the noise to give a better opinion.