swapping in a hydraulic clutch in a 84cj - JeepForum.com
 
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post #1 of 8 Old 09-25-2011, 06:31 PM Thread Starter
Dufftrucks
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swapping in a hydraulic clutch in a 84cj

I have a 84 CJ7 with a 94 tub. I am swapping in a 1974 Mopar 360 with a NP435 4 speed and bellhousing from a 87 D100 and the Dana 300 transfer case that came with the 84CJ. I am using Novak adjustable motor mounts and a Novak trans to Transfer adapter. I'm at the point where the motor mounts are now tacked in to where they need to live and the transmission crossmember/skid plate has been notched and reinforced to accept the big 'ol NP435. Here is my dilemma- On the bellhousing, the pivot point for the clutch arm is no where close to where it needs to be to use the stock clutch set up. It needs to be just forward of the fire wall if I'm going to use the stock set up but it is actually going to have to live a few inches behind it. The motor cannot move any more forward. The only option that I can see is using a hydraulic clutch set up, but I don't know squat about how to set one up. Does anyone have any advice they can offer? Thanks.

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post #2 of 8 Old 09-25-2011, 07:14 PM
scottymac62
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If you have a 94 YJ tub then it is already setup for a hydraulic clutch on the firewall. And if you also have the YJ petals in the tub then you will not have to do any modifications. Just install the master and slave cylinders with the line and you will be set. I'm not sure how the slave will bolt up to your NP435 bellhousing though. If you are using CJ petals, then you will have to do a few modifications. Here is a link showing those mod's........http://www.monsterslayer.com/pages/jeep/HydClutch/HydroClutch.htm

'77 CJ-5 Renegade 304 / T-150, Dana 20, 30/20 axles, Aussie Locker in the Dana 30, American Racing 15x10 Outlaw II's, 33" Dynapro M/T's" ,Optima Battery, TeamRushed + Summit Racing CDI ignition, FlowKooler water pump, Edelbrock Performer Intake Manifold, Holley 4160 390cfm, Herculiner, Silver Ceramic Coated Hedman Hedders, Flowmaster 40's.
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post #3 of 8 Old 09-25-2011, 07:22 PM
BagusJeep
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You may need to play around with the slave cylinder arm. They are mounted to the gearbox where it joins the bell housing, hence depends on relationship of box to bellhousing.

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1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
1951 Willys CJ3A/MB/M38 - Little Willy
1995 Cherokee 4.0 - CHEROKEE
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post #4 of 8 Old 09-25-2011, 07:28 PM Thread Starter
Dufftrucks
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I'm using the CJ petals. The 94 was a automatic and when I did the tub swap, I was running a built 258, 4 speed from a 74. Thanks for the link I'll try to post a pic of what I'm up against tomorrow.
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post #5 of 8 Old 09-25-2011, 08:33 PM
scottymac62
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Quote:
Originally Posted by Dufftrucks View Post
I'm using the CJ petals. The 94 was a automatic and when I did the tub swap, I was running a built 258, 4 speed from a 74. Thanks for the link I'll try to post a pic of what I'm up against tomorrow.
No problem. Let us know how it goes.

'77 CJ-5 Renegade 304 / T-150, Dana 20, 30/20 axles, Aussie Locker in the Dana 30, American Racing 15x10 Outlaw II's, 33" Dynapro M/T's" ,Optima Battery, TeamRushed + Summit Racing CDI ignition, FlowKooler water pump, Edelbrock Performer Intake Manifold, Holley 4160 390cfm, Herculiner, Silver Ceramic Coated Hedman Hedders, Flowmaster 40's.
Warn PowerPlant HD 12K Winch, Dirtworx front and rear bumpers.
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post #6 of 8 Old 09-25-2011, 08:39 PM
nshefbuch
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Call Novak and ask them for advice. I talked to Dave there and he's really knowledgable. I just installed their kit on mine
Attached Thumbnails
image-766198624.jpg   image-1462673435.jpg  

CJ7/SOA YJ leaf/5.3LS/t18a/d300 clock/37"Pitbull Rockers/H1's/14 bolt/d44 ARB 4.10 High Steer
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post #7 of 8 Old 09-25-2011, 08:47 PM
BagusJeep
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Hopefully this diagram is helpful as to the parts.

I have two of these so if you need any further help I can try and find the pictures.

nshefbuch does not have the standard fit system, it looks like the slave is mounted further forwards with no arm (or a very short one) on the front of the cylinder and a bracket. No reason it should not work, it is only a 3/4" bore hydraulic cylinder in the standard system.
Attached Thumbnails
clutch arms.jpg  

BagusJeep lives in Bali.

1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
1951 Willys CJ3A/MB/M38 - Little Willy
1995 Cherokee 4.0 - CHEROKEE
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post #8 of 8 Old 09-26-2011, 02:36 AM Thread Starter
Dufftrucks
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Thanks for the pics and diagrams, guys. I'll call Novak in the morning. They don't offer anything for a Mopar set up on their web site but if need be, I'm sure I could fab something up.
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