69 CJ5, 3.8L and a T90A. CLUTCH HELP!

69 CJ5, 3.8L and a T90A. Update, plz look again.

So like the title says I'm trying to get my CJ5 back together and need some clutch parts. I don't think I have the right parts to do it. I have no idea what parts are from what and don't know how it all goes together. I do know there is a 9" clutch disk, missing pilot bearing, and very loose throwout bearing, like it was made for something else entirely.

So basically, I would like a whole clutch kit. What do you guys think would work for me given my motor and trans? Are there any measurments that would help figure this out?

Thanks,
Mark

the 69 is the one on the left. I just picked up the 73 on the right for $200 running and driving with a working 6.5" Meyer plow.

 

Anyone?

 

Well, actually its a T90C. Its marked T90A on the side but has the 16 tooth input gear which is correct for a 63-71 4cyl. I've searched high and low but can't find any info other than buying a whole kit from Novak.

What I have is a 3.8L Buick V6 and flywheel set up for a 9 1/2" clutch. I have a Buick bellhousing and adapter for my T90. So it all bolts together. Now I just need to figure everything else out. I've looked on the 3B page and helped a little. Novaks website had alot of good info but it all pushed you to buy a $309 kit, and it said I'd have to add a new cluster gear to that kit for $90 more... And I couldn't find any info on clutch parts, like napa part numbers would be great!

 

let me understand this
you are trying to use the 4 cyl 9" clutch,with the V/6, so you can retain the T90c ratios, correct? I can't see that diameter clutch holding up to V/6 torque?
I don't see how the stock 4 cyl input shaft for the trans will reach with an adapter as you stated; should be too short (I'm no expert, just thinking out loud here)
with t90s, you need the longer 6cyl input shaft, but that is not going to allow you to use that T90c ratio you want to keep
so I am confused as to what you are doing here
maybe you know exactly what you want, I don't know if it is made
not much help for you I suppose

 

Ok, this is better. This is the first time I've messed with this old stuff, so everything I type I pretty much learned tonight. I think I understand my problem now.

Lets look at the clutch first.

If this makes sense... 75-77 3.8's used a 9 1/2" clutch from what I can find.... I believe this would be the motor I currently have, hence the small clutch. So would I be better off swaping the flywheel from a 225 onto my 3.8 to get the bigger 10 1/2" clutch? They both are odd fires and from what I can find it looks like you can swap them from what I've read?

Ok, now the input shaft...
This is where I went wrong! My input shaft is to short. This is why Novak is pushing the 6 cyl input shaft then, its longer. I get it now. But if I swap in this I also have to swap in new higher gears, I'd loose my low first. Am I following right?

So what would be the least expensive alternative? My T90 was rebuilt and is good shape. Should I look for a 6cyl truck/wagon T90 and just rebuild and use that? It looks like if I put the longer input shaft in mine, I'll have to change the gear, and also put on a different or longer "clutch tube spacer"

So its either the cost of rebuilding a truck t90 and dropping it in. Or the cost of adapting my current trans to work. What would you guys do?

 

I think you look for a regular T90 or a long shaft model; T90s not that expensive; try www.hermtheoverdriveguy.com for pricing of what you need; if you already have the tower, all you need is the trans; then the stock v/6 clutch, GM bearing retainer and t/o brg.
keep your T90c intact and possibly sell to cover some costs
other folks will suggest T18, SM whatevers, for low granny gearing, if that is what you are looking for.
its your Jeep and you have a vision; time and money are the only limitations for you

 

I just read that topic, also the link in that topic to another topic! I know whats going on now! So my search is on for a T90J from a 52-65 waggon or truck.

My goal here is not a monster mudder or rocker crawler. I'd like to keep this as original as possible, kinda old school but with a twist. I will post some pictures of it pretty soon.

Besides the 3.8L i'm running a scout twin stick D20 case. I also have outboarded the front springs and added spring hangers front and rear to use later 80's CJ springs. I'm running 3.5" BDS springs and hd 1" lift shackles. Also Scout D44's... It should all be riding on 35's for basically cruising around and some light wheeling.

 

Ok here is what I have. I believe I'm well on my way to making this work.

I found a T90A-1, 18 tooth input gear. From the flat face of the trans it measures 9 1/2" to the end of the input shaft that goes into the pilot bushing. I found out that I already had an AA adapter, marked AA502, bolted to a buick bellhousing. The adapter and bellhousing measure 9" deep.

It looks like someone did some work on this long before I got it. So is the the long shaft? It looks like I don't have the correct "clutch tube spacer" from comparing it to pictures on Novaks web site. So what do I have here?? Check out the pictures.