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  #1  
Old 10-04-2016, 07:52 AM
jcrowell jcrowell is offline
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Join Date: Apr 30, 2012
Location: Johnstown, PA
Posts: 21
What clutch is everyone using?

Hi guys, been looking for a clutch for my 78 J10 build and was wondering what everyone is using. It's going to be a mild built 401 with a t18. I'm using the 11.625 bolt pattern. I thought I wanted an 11" or 10.95" but no one seems to make them anymore. Is 10.5" good enough? I wanted to get a borg and beck style because I had a bad experience with a diaphragm clutch once.

Has anyone had any experience with Zoom or LUK brand?

Thanks!
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1973 J2000 (in progress) - 401 4-speed
http://photobucket.com/jcj2000

1979 AMC Spirit AMX - 360 4-speed • http://photobucket.com/jc79amx
1981 AMC Concord D/L
- 258 autohttp://photobucket.com/jc81concord
1966 AMC Ambassador 990 - 327 autohttp://photobucket.com/jc66ambassador
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  #2  
Old 10-04-2016, 11:47 AM
wiley-moeracing wiley-moeracing is offline
350 Buick
 
Join Date: Feb 15, 2010
Location: arizona
Posts: 1,112
i would get a centerforce set up, more dollars but you would only have to do it once.
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  #3  
Old 10-05-2016, 03:35 AM
Nikkormat Nikkormat is offline
232 I6
 
Join Date: Jan 03, 2015
Location: Evergreen, CO
Posts: 143
I'm in the same boat, any experience with the center force vs an OE style 11" Borg and Beck or angle link? Lighter pedal? Smoother? Better holding? Heat resistance?

My application is a little different, as I have a cable actuated clutch, but I've been considering the following kits:

http://www.rockauto.com/en/moreinfo....nid=413&jpid=5

http://www.rockauto.com/en/moreinfo....nid=472&jpid=1

What would you guys choose between the two? A lighter diaphragm or a big old 11 inch? Or a center force?

http://www.centerforce.com/products/...tch-cover-disc
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  #4  
Old 10-05-2016, 03:56 AM
wiley-moeracing wiley-moeracing is offline
350 Buick
 
Join Date: Feb 15, 2010
Location: arizona
Posts: 1,112
centerforce clutch set up
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  #5  
Old 10-05-2016, 08:09 AM
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tgreese tgreese is offline
 
Join Date: May 29, 2003
Location: Medford MA USA
Posts: 11,111
I would just get the generic name-brand clutch kit from RockAuto. Luk or Sachs or Valeo are all good. The 10.95" and 11" clutch are the same thing. There is a 10.5" clutch that fits AMC flywheels, but it was only used on the 304 CJs and 258/232 apps.

Which Jeep is this for? Pretty sure the 360 applications will be all the same, over all years. Nikkormat, which Jeep is this for? If I was not happy with my choices, I would look in the Jeep factory parts book for the PNs of the individual pieces, and cross to those. The OP's '78 should have plenty of choices, but if this is an old or unusual app, you'll have many more options if you search for the individual pieces rather than a clutch kit.
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Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination ATs, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
ECO Green: '15 FCA Jeep Cherokee KL Trailhawk
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  #6  
Old 10-05-2016, 12:35 PM
joe joe is offline
 
Join Date: Apr 28, 2000
Location: PNWet, USA
Posts: 22,374
Normal truck use daily driver? Centerforce is an excellent clutch but expensive and a bit overkill for normal use. I've never dealt with RockAuto but have used OEM replacement clutches from Napa behind a 360 AMC and a 300 Ford. Worked great for a DD. I'd do it again. Whether 3 finger or diaphragm? I prefer diaphragm. Back in the day(way back) cause I've broken a finger on a 3 finger clutch but that was not under normal use. Let your budget be your guide.
On a side note consider turning/resurfacing the flywheel.
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  #7  
Old 10-05-2016, 04:27 PM
jcrowell jcrowell is offline
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Join Date: Apr 30, 2012
Location: Johnstown, PA
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For me, I plan on doing some towing - car trailer/boat, and some minor offroading. The problem that I ran into is that the manufacturers aren't making 10.95 or 11 inch pressure plates anymore (aside from cheap kits). I ordered a RAM clutch kit from Summit that was supposed to be 11 inch but when it came was 10.5. I ordered a Hays pressure plate that said it was an 11" for AMC but when it came, the bolt circle was 12 5/8 instead of 11 5/8 and it hung over the outside of the flywheel. I called Hays directly to see what the problem was and they tried to sell me a flywheel. Their only option now is a 10.5 diaphragm, the borg and beck has been discontinued. I then called McLeod clutches to check on a part number that I found that should work for a 10.95 inch clutch. All their 10.95 stuff has been discontinued as well as their borg and beck style. He gave me some baloney about the castings cost too much to make. I called LUK to check on their 11 inch clutch. The static pressure for it is 1750 lbs, the ones I was looking at from Hays and McLeod were advertised at 2400 lbs.

I wanted to get a decent one from a better brand. I sometimes question cheap stuff from rock auto. I mean it's not like changing a thermostat when it fails.

With that said I notice the centerforce is a 10.4 inch disc for their I, II, and dual friction. So do you think I would be good with a 10.5 from another brand? If I go the centerforce way, should I go centerforce II or dual friction?
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1973 J2000 (in progress) - 401 4-speed
http://photobucket.com/jcj2000

1979 AMC Spirit AMX - 360 4-speed • http://photobucket.com/jc79amx
1981 AMC Concord D/L
- 258 autohttp://photobucket.com/jc81concord
1966 AMC Ambassador 990 - 327 autohttp://photobucket.com/jc66ambassador
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  #8  
Old 10-05-2016, 05:47 PM
Nikkormat Nikkormat is offline
232 I6
 
Join Date: Jan 03, 2015
Location: Evergreen, CO
Posts: 143
Pretty much the same for me, except I have never driven a clutch more than around a parking lot so I expect to kill the first one very quickly. And I'm a bit of a sissy so I don't really want the heavy as a mack truck stock pedal feel.

Mine is in a 1972 J4000

I'll try and dig out my flywheel to measure and be sure I know what bolt patterns I have. Mine may be different as it was originally for an IH application and used an IH angle link clutch. Which I still have, actually.

Pictures of the old clutch:


Not in that bad of shape, if it has the finger height as the Jeep pressure plate I suppose I could just buy a new disk for the time being and then a center force later when I can actuelly drive properly.

Here's the flywheel, does it need to be resurfaced? looks better in person...

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  #9  
Old 10-06-2016, 08:52 AM
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tgreese tgreese is offline
 
Join Date: May 29, 2003
Location: Medford MA USA
Posts: 11,111
I would.

All the AMC flywheels I've seen have tapped holes for both sizes of clutch. AFAIK the heavier and more powerful vehicles got the 11" clutch (V8 FSJs), and the lighter or less powerful vehicles got the 10.5". The book says an 11" was optionally available for the 6-cylinder pickups... may have been on the option list as "heavy duty clutch." I know that 304 CJ owners have been using the 11" clutch as an upgrade since the 304 appeared in the CJ in 1972.

There is a J-truck parts book on the Tom Collins site - I suggest you look up the PNs (Group 5) and cross them.

plate 3184867 - same as 74-77 360/401 and likely other years
cover 3184955 - same as 74-80 360/401 and likely many other years
T/O brg 3190517 - no time to cross it to other years - later
pilot 3213751 - no time to cross it to other years - later
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Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination ATs, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
ECO Green: '15 FCA Jeep Cherokee KL Trailhawk

Last edited by tgreese : 10-06-2016 at 10:29 AM.
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  #10  
Old 10-06-2016, 06:05 PM
babywag's Avatar
babywag babywag is offline
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Join Date: Jun 08, 2005
Location: Land of froot loops and cukcoo-nuts, CA
Posts: 9,520
NAPA house rebrand clutch has worked well in the '72 CJ5 w/304 & 3spd.
However the throwout bearing was not correct and had to reuse the old one.

It was a LUK brand clutch in a NAPA box. The 11" was ~$25 more than standard 10.5". This was a few years ago things may be different now?
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  #11  
Old 10-07-2016, 08:34 PM
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crazydog crazydog is offline
350 Buick
 
Join Date: Nov 19, 2005
Location: Permian Basin
Posts: 848
My Cherokee with the 401 has a Centerforce and the CJ5 with a 360 has a whatever was cheap at Oreilly's. No issues with either.
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1979 Cherokee - Built 401, NV4500, Dana 300, 6" BJ's Lift w/ Bilstein 5125 Shocks, Goodyear Wrangler MT/R 35X12.5R15, Front Brake Upgrade w/ GM 2500 Calipers & EBC Pads, Rear Disc Brake Conversion, Z&M Jeeps Dash Insert w/ VDO Series 1 Gauges, Tad Rack, Ramsey Hidden Winch w/ REP8000, Hydroboost, CS140

1967 J3500 - Making plans
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