well, I have a LS hydro trans and I'm thinking about swapping in GSR 3rd and 4th gear. a set of B16 syncros are readily available for me at a reasonable price and thinking about buying them. will this work. Thanks in Advance!!!!!

 

Nope, 3rd and 4th GSR/LS synchros are smaller than the B16/R ones.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by F20Cteg &raquo;</TD></TR><TR><TD CLASS="quote">
Nope, 3rd and 4th GSR/LS synchros are smaller than the B16/R ones.

</TD></TR></TABLE>

I thought so too. Thanks again

 

Yeah but 1/2 & 5/R syncros are the same between gsr & b16.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by F20Cteg &raquo;</TD></TR><TR><TD CLASS="quote">
Nope, 3rd and 4th GSR/LS synchros are smaller than the B16/R ones.

</TD></TR></TABLE>

what difference in size are you referring to?

you should be able to put B16 synchros in. the hydro trannys should have the same
shaft diameters. when I had my b16 and gsr trannys apart before I hybridized
my gsr tranny by adding b16 3,4,5th gears to it - I compared all the parts and
the synchros were the same. I used the gsr synchros since they were fresher,
the tranny has 16K on it now since adding the gears and lsd.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by frostyrb &raquo;</TD></TR><TR><TD CLASS="quote">Yeah but 1/2 & 5/R syncros are the same between gsr & b16.</TD></TR></TABLE>

Yes that is correct.

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

what difference in size are you referring to?

you should be able to put B16 synchros in. the hydro trannys should have the same
shaft diameters. when I had my b16 and gsr trannys apart before I hybridized
my gsr tranny by adding b16 3,4,5th gears to it - I compared all the parts and
the synchros were the same. I used the gsr synchros since they were fresher,
the tranny has 16K on it now since adding the gears and lsd.
</TD></TR></TABLE>

You CANNOT put B16/R synchros with GSR/LS sliders/gears. The B16/R synchros are larger in diameter. The shaft size is irrelevant.

When you made a hybrid tranny you transferred over the gears and synchros together or you didn't have a B16 tranny.

 

I took some pics so you all can see the differences. As you can see there is almost a 7mm difference in diameter.

First is a B16 3/4 set:


Second is a GSR 3/4 set:

 

understood!!! Thanks