spline count

tjc · Post by **tjc** » Sun Jun 19, 2005 9:43 pm

Once again I am confused. I'm mating a '91 4G63T with a D50 5 speed.
Just bought a '91 DSM AWD clutch kit at Autozone and the disk spline is 7/8" 20 count. I was expecting 1" 23 count. I am pretty sure that is the count for the D50 b/c it matches my alignment tool I have left over from the last clutch I put in the truck.

Did they give me the wrong kit or are all DSM's (both FWD and AWD) the same input spline count. On the DSM boards people swear there is no difference and some swear there is but no one has showed me a picture.

I am even more confused b/c the centerforce web site states the D50 spline is 7/8" 20. DJ made an earlier post that said the centerforce catalog named it at 1" 23. (I believe you DJ.)

<a href='http://www.centerforce.com/centerforces ... 20PICK-UPS' target='_blank'>Centerforce</a>

1) what is the D50 input spline count?
2) is there any DSM with that same count?

plese help, i've wased most of a sunday afternoon <_<

Mike · Post by **Mike** » Mon Jun 20, 2005 12:06 pm

You are on the wrong part of the centerforce site, you need to be <a href='http://media.centerforce.com/Catalog/Ce ... WEB.pd.pdf' target='_blank'>here</a>.

DSMs use 7/8"-20 while all pickups except the V6 use 1"-23.

Post by **DJpowerHaus** » Mon Jun 20, 2005 10:10 pm

1st rule of frankenstein club... dont believe anything you read on the internet.

I think that info I have posted might be wrong. Mike (above) is correct about the spline sizes. You really need to post if you're unsure and CALL places when you make orders to run things by them. Calling Southbend clutch was so quick and easy they knew exactly what I wanted and that's what I got, I didnt need to specify anything.... so that's why I got what I got. They set up the combo for me.

tjc · Post by **tjc** » Mon Jun 20, 2005 11:05 pm

That's what I thought, I'll just call those guys and get the GSX set with a 1' 23 spline disc...no problem.

It's funny, this is my first swap and definitly the biggest project I've undertaken. I use your site, DJ, as the bible and it has taught me a lot. If it wasn't there I would never be able to attempt this (ie I would never be in so far over my head-but I'm having a great time and if it ever runs I'm willing to drive by your place and bring a case of beer).

PS check out this <a href='http://http://www.dsmtuners.com/forums/ ... line+count' target='_blank'>thread</a> where somone quotes your site like the bible.

here is the quote...

"then tell me why a GST clutch will not fit my trans input shaft but a GSX clutch will?

The 1G for certain has different input shafts between the 2 types.
Trust me... first hand... they are different.

go to www.beatingyou.com/forum and ask the same question there... you will find the same answer..."

tjc · Post by **tjc** » Wed Jun 22, 2005 6:11 pm

I called Andy at South Bend Clutch, he set me up with what I needed right away... sail "oh, I know what you're doing."

DJpH, tell him your site is sending him business and maybe they'll set you up with a clutch for the race car.

Believe it or not I'm having trouble finding a machine shop near me to drill the eclipse flywheel for the D50 pilot bearing.

PS. I'll bring beer and any othe non-alk bev of choice.

4g63dodged50 · Post by **4g63dodged50** » Mon Jun 27, 2005 2:26 am

im gonna try to run a stock d 50 clutch disk with an ACT 2100 pressure plate.. im not sure yet whick flywheel i will have to run.. AWd or FWD? but hopefully it will come together rather quickly and easily,,,,,,

if anyone has tried this and it hasnt worked let me know.......
oh and im puttin a 4g63t in an 87 d 50
thats what im working on..

Post by **DJpowerHaus** » Tue Jun 28, 2005 4:24 am

</div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (tjc @ Jun 22 2005, 10:11 PM)</td></tr><tr><td id='QUOTE'> I called Andy at South Bend Clutch, he set me up with what I needed right away... sail "oh, I know what you're doing."

DJpH, tell him your site is sending him business and maybe they'll set you up with a clutch for the race car.

Believe it or not I'm having trouble finding a machine shop near me to drill the eclipse flywheel for the D50 pilot bearing.

PS. I'll bring beer and any othe non-alk bev of choice. [/quote]
How about you tell them I sent you there

. I do plan on calling them up to see if they want to help me out on the drift car. Gotta get this damn new website done though so they can look at pretty pictures and realize I'm serious.

jelliott510 · Post by **jelliott510** » Sun Aug 28, 2005 12:54 pm

You use the 2.6L disk. It is the same o.d. as the 4G63 with the correct spline for the transmission.
ALL 1G Eclipse share the same clutch dick and pressure plate. It is just the o.d. of the flywheel that is diffrent.
I have to agree that there is alot of mis-information on the internet. I check to see what everyone else says and just use is as a guide. Some info is good some BAD!!!
I feel that I have a little "better info" to refer to then most, I run a aftermarket auto parts store. Even some of the catalog info is wrong. But trial and error is still what I bace fact on. not what someone else says.
This site is BY FAR the best!!! You get to see actual running car!!! It is not some joker pretending to go fast.

Post by **DJpowerHaus** » Mon Aug 29, 2005 5:07 pm

No no no.. you cannot use the 2.6 disk. Unless maybe pre-88 stuff is different. A 240mm disk will not fit in a 225mm surface. The splines are the same, but not the disks.

jelliott510 · Post by **jelliott510** » Tue Aug 30, 2005 1:45 am

YES YES YES pre 88 stuff. Sorry I forget the 88-89 clutch is bigger. I meant 225mm stuff. That is what I used. It fits the splines and the FWD flywheel perfect. You are exactly correct. A 240mm dick WILL NOT fit a 225mm flywheel.
Sorry for the error.