Whats the size and spline count on a 4spd?

donk_316 · Post by **donk_316** » Wed Jan 04, 2006 12:33 pm

Ever since Will mentioned the "tilton" style of clutch I have been looking...

But i cant seem to find the right spline sizes....whats the Fiero 4spd spline count and size?

Is it:
1 1/4" 29 spline?
1 5/32" 26 spline?

MNFatz · Post by **MNFatz** » Wed Jan 04, 2006 6:45 pm

14 spline, 30MM.

After I saw your figures again, I went back out to the garage and double checked to make sure my clutch disc fit (Spec stage 3)

Damn that seems weak.

donk_316 · Post by **donk_316** » Wed Jan 04, 2006 6:49 pm

Yow. 30mm is 1.18 inches right?

Maybe that idea is out. lol!

Where did you get your Spec Clutch? What store? Online?

MNFatz · Post by **MNFatz** » Wed Jan 04, 2006 7:22 pm

Yeah, the spline is about 1 1/8th or so in diameter. There's some lateral play on mine that I don't like, but I guess there's not much I can do about it.

www.jdsperformance.com is where I get my Spec from. Around $275 shipped.

Shaun41178(2) · Post by **Shaun41178(2)** » Wed Jan 04, 2006 7:39 pm

titan motorsports also sells specs for the fiero. They are in orlando. Not sure of their prices though.

I think its titanmotorsports.com

there is always direct from spec too.

Post by **eHoward** » Wed Jan 04, 2006 9:08 pm

I like Titan. I've bought some stuff from them. Also met them in person at Atco. Good people.

Shaun41178(2) wrote:titan motorsports also sells specs for the fiero. They are in orlando. Not sure of their prices though.

I think its titanmotorsports.com

there is always direct from spec too.

S8n · Post by **S8n** » Wed Jan 04, 2006 9:27 pm

Titan is definitely good people. If anyone needs stuff checked out there let me know.

The Dark Side of Will · Sat Apr 22, 2006 1:28 pm

I think it's 25mm 14 spline.

I measured 0.960 diameter across the splines on a 282 input shaft.