90-91 vs 92-93 Clutch (Splines and Shaft Diameter)

INFORMATION Articles / Teg Tips
1

The topic of 90-91 va 92-93 clutches has just about been covered to death, I know. However there is almost always a debate about whether the difference is input shaft spline count, input shaft diameter, or both. There are some who say one and some who say the other but I have yet to see any more proof than what someone “thinks”.

I was looking for clutches and some of the EXEDY clutch specs are listed on the No Limit Motorsports website: http://www.nolimitmotorsport.com/exedy/organic.html

In case that link ever dies…

90-91 Integras
Spline / Teeth = 24
Major Diameter = 25mm

92-93 Integras
Spline / Teeth = 24
Major Diameter = 26mm

This just confirms (assuming their site is correct) what most of us have thought: spline count is the same, it’s only the input shaft diameter which changes. I’ve just never remembered to do the counting when I’ve had access to the parts…

2

thanks for the info…

3

what does major diameter mean?

4

ma⋅jor
–adjective
7. greater in size, extent, or importance

di⋅am⋅e⋅ter
–noun
3. the width of a circular or cylindrical object.

5

Also, the 92-93 shaft is a tiny bit longer. Enough that you are not suppose to rest the transmission on the bellhousing side since the shaft protrudes beyond that face.

6

Just to add on. 92-93 clutches also work for 94-01.

Only the throw-out bearing is different between cable and hydro.