[98integraLs]

FWIW, i got nearly ithe same gas mileage using my ITR tranny as i did with the ls. once you get use to being at 3000+ rpm on the highway its really not that big of a deal.

 

[integra366]

I think your going to need a press to press all the gears and synchros back in place also.

not true....I hammer and socket will work fine.

 

[daily]

i'm greatly concidering doing the jdm4.7fd and an ls 5th in my gsr tranny. if i had another form of transportation i would do it right now, but since i'll be doing it myself and will need to take my time and have my car without a tranny for at least 2 days i'm waiting. but now that i know for sure the ls 5th will fit right on i might just go for it. i've played around with the gearing calculator and its a valuble resource. ive spent a little time looking through the helms and it seems feasable to do it myself as long as i'm diligent. heres a couple good links

this tread on t-i
that gearing calculator
a link about the 4.7 on h-t
and a full tranny teardown w/ fd and lsd install with great info and pics on h-t

-ryan

 

[redkroovy]

Sorry Christian I could not find the exact article in SuperStreet mag but the manufacturer was g sport racing or mr. g racing something like that. However I was able to come across some 6 speed fwd aftermarket trans. at http://quaifeamerica.com/. I do remenber that it was priced out of the range of most people.

 

[daily]

plugging in the numbers for my setup(stock gsr tranny w/ 195/50/15's), my setup with the jdm 4.785fd, and all of the prevous but with the ls 5th i get these numbers for highway cruising. rpm @ mph in 5th

stock w/ 195/50/15
3077 @ 60
3589 @ 70
4102 @ 80

previous with jdm 4.785fd
3346 @ 60
3904 @ 70
4461 @ 80

previous 2 with ls 5th (.714)
3036 @ 60
3541 @ 70
4047 @ 80

i dont know how the ls 5th will affect changing gears between 4th and 5th. someone with more tranny and gearing experience please shed light on that.

-ryan

 

[ajinct]

well i did it on a d-series trans i put three different trannies together. an si, ex, and vx. i put the shafts together and then tried each case to see if it would rotate in all of them and it did. you could just do that. but i mean honda used all the same exact parts they just used differnt numbers of teeth on their gears. i dont think your gunna have a problem. i remember seeing that 6 spd a while back to for a b-series but it was like 3800 i think. but im sure some of these jdm trannys will be just as much.

 

[jdm_teggy]

kinda old, but hows this project going....any info?

 

[pythonscott]

i dont know how the ls 5th will affect changing gears between 4th and 5th. someone with more tranny and gearing experience please shed light on that.

well, if you've experienced doing full throttle shifts from 1st to 2nd in with both an ITR trans and a GSR trans, you'll have an idea. The ITR doesn't have near the gap between 1st and 2nd that the GSR and LS trannies have. So its kinda the same thing with going to the LS 5th. It's a bigger gap, the revs will fall a little further and the acceleration will be weaker than before.

 

[IanB2]

I'll be doing this in the next month or so, just wanted to say thanks for the great info in this thread. Also, does anyone know why there is a different application for the LSD's between LS/B16 and the GSR/TypeR? I'm kind of stuck on this point as I have to order the LSD right away, and I'm not sure what parts determine which LSD I should use.

I'll be using an LS case, LS or GSR 1-2 (from what I can tell they are the same), GSR 3-4, LS 5th, and I'm not sure on the FD until I figure out which LSD I need, and if the FD's are compatible with either.

 

[MeltMan]

the LSD needs to match the number of holes on the diff ring gear I believe.


So, match the LSD to the type of diff that is in your trans.

Also, your diff must match the countershaft!!! 4.40 ring gear must MATCH with a 4.40 countershaft. There is a gear built into the countershaft. If you dont match them (like LS countershaft with GSR diff) then you'll nuke your trans in a heartbeat. The pitch of the gear teeth are different.

Use GSR 1-2, you get the benefit of the GSR's dual cone synchro on 2nd gear.


Basically you should use a GSR trans as the base and just swap in an LS 5th. Think about it.

 

[IanB2]

the LSD needs to match the number of holes on the diff ring gear I believe.


So, match the LSD to the type of diff that is in your trans.

Also, your diff must match the countershaft!!! 4.40 ring gear must MATCH with a 4.40 countershaft. There is a gear built into the countershaft. If you dont match them (like LS countershaft with GSR diff) then you'll nuke your trans in a heartbeat. The pitch of the gear teeth are different.

Use GSR 1-2, you get the benefit of the GSR's dual cone synchro on 2nd gear.


Basically you should use a GSR trans as the base and just swap in an LS 5th. Think about it.

I have only the GSR gearset, not a full tranny to work with, so that is not an option. Does the GSR FD have a different number of holes than the LS/B16 one? I will have a GSR countershaft I can use, I just need to get my head around this whole which diff to order thing. Good point on the GSR 1-2 gear/synchro thing, thanks for pointing that out.

 

[CJ]

GSR/ITR (USDM) countershaft goes with GSR/ITR (USDM) ring gear/dif.

LS countershaft goes with LS ring gear/dif.

You can put GSR/ITR dif into an LS tranny, you just need to swap all the gear from the LS countershaft to the GSR/ITR one.

I didn't read this thread, but I hope I helped.

 

[IanB2]

GSR/ITR (USDM) countershaft goes with GSR/ITR (USDM) ring gear/dif.

LS countershaft goes with LS ring gear/dif.

You can put GSR/ITR dif into an LS tranny, you just need to swap all the gear from the LS countershaft to the GSR/ITR one.

I didn't read this thread, but I hope I helped.

You sure did! That's exactly what I was looking for!

 

[CJ]

Super.

 

[DBLCHEESEFROMBK]

Im not sure if I should start a new thread since one is already here. My question is where do I source 3rd and 5th from for a YS1 cable transmission, Im not sure if its JDM or not but its in my 1990 Teg. Email or PM me thanks.

 

[IanB2]

one last question, I know now that the FD, LSD, and countershaft all need to match up, is there ANY reason I can't put the GSR diff in my LS case? I've heard a few places that it is "bigger", but does that cause any sort of fitiment issue?

 

[skaterdude_10]

one last question, I know now that the FD, LSD, and countershaft all need to match up, is there ANY reason I can't put the GSR diff in my LS case? I've heard a few places that it is "bigger", but does that cause any sort of fitiment issue?

Curious to have an answer to this as well. I was in an accident and cracked the trans case on my GSR trans. I have my factory LS trans with no third gear. Can i swap both shafts and diff into the LS case with no issue?

 

[MeltMan]

one last question, I know now that the FD, LSD, and countershaft all need to match up, is there ANY reason I can't put the GSR diff in my LS case? I've heard a few places that it is "bigger", but does that cause any sort of fitiment issue?

Dont think there are any fitment issues.

You WILL need to swap the bearings off and install B16 ones. The LS case uses ball bearings and the GSR diff will have tapered bearings on it. Gotta pull them off and use ball bearings.

 

[CJ]

It will fit perfectly fine. I have actually done it. Just swap all the gears form the LS countershaft to the GSR countershaft and drop the dif in. Make sure to check for clearances.

I think all of the "new" style one piece bearings will work.

 

[IanB2]

Wow, thanks guys! I'm pretty new here, and this site has been AMAZING for getting technical answers to some tough questions, cheers!