Buick 225 to SM420 clutch kit

[FILDO]

Hey guys,
First time poster here needs some help. I've got a 70 CJ5 with a 225 V6 with an SM420 Transmission . When I bought the jeep, the clutch and everything to do with the clutch (minus the stock fly wheel that was installed for the T-14 )did not come with the jeep. So my question is what clutch kit do I need for this set up? I'm assuming the fly wheel will need to be replaced also to make this conversion work. Any help is appreciated. Thank s Phil

 

[JR74CJ5]

Check this out:

The GM Muncie SM420 Transmission - Novak Conversions

Lots of good info there. While it doesnt give you a "easy" answer or part number for the kit you will need, you can go to summit or centerforce etc websites to search by pilot tip size, and shaft diameter / tooth count.

From what I can see you will need a 10.5" clutch with 1-1/8" 10 spline. and a pilot bushing in your current flywheel / flexplate for a 19/32nds shaft tip.

Read up on that page a little, and even call or e-mail them, they've always been very helpful to me.

You can also try giving this guy a call with 4 WD Hardware - Brian Stewart - 800-333-5535 he may be able to sort you out and get you what you need...

I've never used him personally, but he seems very helpful on another forum i frequent.

:ww:


~ Jr

 

[FILDO]

Check this out:

The GM Muncie SM420 Transmission - Novak Conversions

Lots of good info there. While it doesnt give you a "easy" answer or part number for the kit you will need, you can go to summit or centerforce etc websites to search by pilot tip size, and shaft diameter / tooth count.

From what I can see you will need a 10.5" clutch with 1-1/8" 10 spline. and a pilot bushing in your current flywheel / flexplate for a 19/32nds shaft tip.

Read up on that page a little, and even call or e-mail them, they've always been very helpful to me.

You can also try giving this guy a call with 4 WD Hardware - Brian Stewart - 800-333-5535 he may be able to sort you out and get you what you need...

I've never used him personally, but he seems very helpful on another forum i frequent.

:ww:


~ Jr

Thanks for the quick reply! I'll be making a phone call to Brian tomorrow.

 

[TroyaCantrell]

Post when you get things figured out, I have the same setup on my CJ and the info could be useful.

While my clutch functions it is difficult to push and generally seems screwy.


Troy Cantrell
Sent from my iPhone using Tapatalk
Build thread - '66 CJ6 :
http://www.jeep-cj.com/forums/showthread.php?t=15075

 

[mstar]

The V-6 flywheel will work just fine.Basicly they came stock with GM 10.5"
clutch and pressure plate.If your 1970 has the one piece bellhousing youwill need to source a B.O.P. bellhousing.The earlier V-6 had a B.O.P. bellhousing with a adaptor behind it for the T-14 bolt pattern.This was a very common mod back in the day,pull the T-14 and bolt up a Muncie M-20. all GM ,no mystery.You will need the correct pilot shaft bushing. MIKE