what is the gear ratio of a 2gb 97-99 gsx

[pj91gsx]

i have a 97 talon, the rear end say 3.545 on it and i thought the gear ratio was different for the 97-99 compared to the 90-96.

 

[twicks69]

The rear end ratio is the same from 1990-1999 -- the difference is in the gear ratio of the transfer case of 1990-1996 vs. 1997-1999, and the 58-tooth front diff ring gear in 1990-1996 vs. the 57-tooth front diff ring gear in 1997-1999 transmissions.

 

[pj91gsx]

ah. i counted the revoultions to move the tcase spline while the motor and trans are in the car. It came out to 12 revs of the motor in 1st gear and lined up the tcase spline to where it was when i first started turning it.

 

[4pistons]

All the stock trans, x-fer case, and rear gear ratios can be found here:

Tranny gear ratios for DSMs

Rick - '91 GSX

 

[pj91gsx]

All the stock trans, x-fer case, and rear gear ratios can be found here:

Tranny gear ratios for DSMs

Rick - '91 GSX

i dont understand why the chart doesnt have a late model 2g ratio.

 

[4pistons]

I'm conused that you're confused!! WTF

That chart lists 1G, 2G, AWD, FWD, VR4s, Manuals, and Automatic.

What else is there??

It was last updated in 2000 so it doesn't include 3Gs or 4Gs, but we're not talking about those... are we?

Rick - '91 GSX

 

[pj91gsx]

I'm conused that you're confused!! WTF

That chart lists 1G, 2G, AWD, FWD, VR4s, Manuals, and Automatic.

What else is there??

It was last updated in 2000 so it doesn't include 3Gs or 4Gs, but we're not talking about those... are we?

Rick - '91 GSX

95-96 2g awd transmissions were geared different than the 97-99

YouTube - 2G DSM Transmission Differences

i watched the video again. i messed up because i have to spin the transmission 5 revs and i did 12.

 

[4pistons]

That's good info. Now you know.

Here's a quote from the VFAQ site and why it may be incorrect:

According to the Shop Manual CD, here are the gear ratios .... The Shop Manuals for the different years sometimes conflicted with the Tech Manual (the CD only has the early Tech Manual, so only covers 1Gs), so I put what I thought were the proper numbers in some places

Apparently the shop manuals don't even mention a change in 2g ratios. That's why the DSM community is awesome!! We know more than the factory guys do!!

And we share it with everyone!

Rick - '91 GSX

 

[Artago]

The rear end ratio is the same from 1990-1999 -- the difference is in the gear ratio of the transfer case of 1990-1996 vs. 1997-1999, and the 58-tooth front diff ring gear in 1990-1996 vs. the 57-tooth front diff ring gear in 1997-1999 transmissions.

Is there any way to differentiate the two while it's in the car? 57 vs 58 tooth

 

[twicks69]

Of the transmission? well, I guess the easiest way would be the part number on the bellhousing. W5M33-2-MUZT is the 97-99 AWD transmission if it is unmolested.

 

[Artago]

Of the transmission? well, I guess the easiest way would be the part number on the bellhousing. W5M33-2-MUZT is the 97-99 AWD transmission if it is unmolested.

Thanks. I managed to find the same info here: http://www.4g63turbo.com/tech/eclipse-5speed-swap.html
The trans was built by Jack. Hopefully the serial number matches the internals.
Tomas