Hey we are pulling the LSD out of my GSR tranny and i thought what better time to doa LS final drive swap. Im not really sure what all is needed for this swap.

What would i need to give my GSR tranny an LS final drive?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbotime &raquo;</TD></TR><TR><TD CLASS="quote">Hey we are pulling the LSD out of my GSR tranny and i thought what better time to doa LS final drive swap. Im not really sure what all is needed for this swap.

What would i need to give my GSR tranny an LS final drive?</TD></TR></TABLE>

For just the LS final drive swap, you will need the countershaft and diff ring gear. The problem is that the ring gear for the LS will not fit the GSR LSD.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blown90hatcH &raquo;</TD></TR><TR><TD CLASS="quote">For just the LS final drive swap, you will need the countershaft and diff ring gear. The problem is that the ring gear for the LS will not fit the GSR LSD.</TD></TR></TABLE>

thats why i said its a PITA dan. the pinion gear is cast into the counteshaft. just get the LS 5th gear and bring it buffalo and we'll put it in then

 

alright cool thanks for the info

guess ill just pickup the ls 5th gear and throw that in, thatll give me a nice long cruising gear right?

Is all i need the 5th gear? no crazy rings or shafts or anything?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbotime &raquo;</TD></TR><TR><TD CLASS="quote">alright cool thanks for the info

guess ill just pickup the ls 5th gear and throw that in, thatll give me a nice long cruising gear right?

Is all i need the 5th gear? no crazy rings or shafts or anything?</TD></TR></TABLE>

You need the 5th gear from both the counter and mainshafts.

 

I think I am wanting the same trans set up he is .... I have a hydro LS trans now ... from what I have read the ratios on both units are:

Integra LS (b18b)
1st - 3.230
2nd - 1.900
3rd - 1.269
4th - 0.966
5th - 0.714
final - 4.266

Integra GSR (b18c1)
1st - 3.230
2nd - 1.900
3rd - 1.360
4th - 1.034
5th - 0.787
final - 4.400


So does that mean all I would need is an LSD for an LS and the 3rd and 4th gears out of a GSR trans ??? And I would have bacically the same set up? ? ?

 

jfoster i think ur correct, im not really sure tho

does anyone have the honda p/n's for the 5th gears from the ls (1x main, 1xcounter)

thanks again

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blown90hatcH &raquo;</TD></TR><TR><TD CLASS="quote">

For just the LS final drive swap, you will need the countershaft and diff ring gear. The problem is that the ring gear for the LS will not fit the GSR LSD.</TD></TR></TABLE>

wrong. you only need the ring gear to do the swap from 4.266 to 4.4

Ring Gear Tooth Count:
4.266 = 64 teeth

4.400 = 66 teeth

4.785 = 67 teeth

Countershaft Tooth Count:

4.266 = 15 teeth

4.400 = 15 teeth

4.785 = 14 teeth

 

I found this after a quick search.
Might provide some insight
https://honda-tech.com/zerothread?id=555929


pretty god thread with part numbers. Looking to do the same... however.. i still wanna highway battle.