I am going to be putting a NP435 into my CJ7 w/my current 258 and am wondering if I need to use a master/slave cylinder or if I can reutilize my mechnical clutch?

I am also considering just buying a 5.0 or 351 and NP435 together and dropping it in all together as one piece to avoid all the "little things" to deal with adapting the tranny to my 258. The NP435 will replace my T-176.
If I do take this road, will two passenger side engine mounts work to bolt the 5.0 in? or is that a myth?

Jason

Your mechanical linkage will be just fine.

2. You're going to swap an engine, to avoid incidentals??? Are you mad??? Since you've got the T176 already, you just remove old tranny, insert new tranny. A few other steps, but that's pretty much it.

My main reason was not to avoid incidentals, but that is a sweet bonus. The main reason was to ditch the 258 and acquire FI. I like the 258 for the torque, but I like to be able to drive up hills at a reasonable rate too. I was thinking after I posted that my mech clutch will work because I am keeping my t-176 bell housing and would have no need to change unless the strok is not enough to engage and disengage the clutch properly.

What parts will I need?
1. I know I can keep my flywheel and just have it resurfaced.
2. Which clutch and pressure plate will I need? Ford? F-150? 1978? (What year and model?)
3. Which throwout bearing is needed? (Same as 2.)
4. I think I need the pilot bushing from AA, but not positive.
5. I am going to buy an adapter for the NP435 to Dana 300 to keep my D300 because I am in no financial position right now to purchase the Atlas, but I would still an adapter kit for that too.
6. Am I forgetting anything?

I am not normally mad Mo, but sometimes I tend to jump the gun. I tend to start projects that do not need to be started when there are more important things to be done. I figure since I have the tub off right now I mine as well do everthing at once. And no I did not pull the tub off to change the tranny, I am putting on a YJ tub right now and decided a granny gear would be nice, so why not do that while I have easy access. Then I began to think wouldn't a Mustang 5.0 HO or 351 look good in front of it? I have to stay focused and just do the NP435 and tub for now.

Jason

Remove T-176, change out the pilot bearing to a slightly larger diamater one (as I recall), slap the 435 in there. Getcher adapter for the 300 and wheel the piss out of it. And if you don't twin stick the 300 while its out you'll regret it for the rest of your life as well. :) Its easy to do, do a search in Jeep tech, several people described techniques.

Boots

Ive been thinkin of swappin my t176 tranny out of my j10 (258/t176/NP208), and installing a NP435, but I was under the impression the NP435 would bolt to the NP208 without an adapter??? Its the same as a t176???(they are both ford trannys!) If not I guess I have to find a t18 or t19, then again, I dont know if they will bolt in without an adapter either???????

BootsntheJeep , you're saying that the clutch, pressure plate and throwout bearing are the same for the NP435?
Can I get the pilot bushing from a local parts place or do I need to order from AA?

jslamerman, the t-176 that is stock in CJ's came with a Dana 300 bolted to it in 80-86. The Fullsize Chero and pickups came with the NP208 bolted to it in the same years with the command trac option. I am not positive, but I think they have the same bolt pattern. I remember yanking a pickups tranny and pulling the t/c off (NP208) and then dropping it in one of my earlier Jeeps w/Dana300 w/out any problems. So, if they are the same, you will need an adapter for your t/case.

If I am correct, they both are 23 spline input and the round bolt pattern. The only diff is that te 300 is pass. side drop and yours is drivers.

The adapter for the NP435 to the Dana 300 comes with a new mainshaft so I am guessing you will need the same.

Unsure about the 208 - 300 conversion, but for the bushing, call Novak - they've got a nice roller bearing unit.

Have the NP435
Dana300 adapter & pilot bushing are on their way
Going to get flywheel turned today and pickup new clutch shtuff,
but I am still unsure about throwout bearing...
I think I need: (please correct me if I am wrong)
t-150 clutch disk
my t-176 pressure plate (a new one of course)
T-176 Throwout bearing????
I have been told to use this, bit I think the t-176 has a different dia. shaft. How should the throwout bearing fit? snug? loose?


Thanks for your time.

yes you need the t176 throwout bearing. i used it with the original t176 clutch fork etc.

as for the pilot bushing i got mine from aa and it was like 23 bucks but it isn't the roller bearing type one. i guess it should be fine otherwise they wouldn't sell them.

another way to mate the 435 to the d300 is to just get the adaptor from novak with no new input shaft for the d300. they quoted me 160 or so for the adaptor alone but this was a while back. then you can take your 435 output shaft to mosser and get them to respline it to 23 spline like the d300. i was going to go this way but figured i would make my life a little easier and make my own adaptor for the EB d20 and keep the driver side drop.

ok, I did it.

You need a custom pilot bushing (NP435 input shaft is 1" shorter and has a thicker tip than T176)

Get a new clutch disk, in my case , I got a F350 one, it's 11" diameter, but has the correct spline count and diameter. Went to the machinist and turned down the disc to the desired 10.5" diameter. (later I was told Mustangs used a disk for this purpose, not sure)

The throwout bearing is the same you've been using.
Same clutch linkage

The T176 is bolted to the bellhsg by 4 1/2" bolts. The Np435 accepts 7/16" bolts, just drill the ears of the Np435 with a .5" bit.

Heat and bend the shifter.

I just did this swap on my '78 CJ7 with a 304. I had the T150, though. My understanding is that the T150 and T176 are interchangeable, though, so I think what I have to say shouldn't matter.

Clutch assy, flywheel, pilot bushing and throw out bearing were all ordered with reference to the motor, not the tranny. So as long as the NP435 is interchangeable with the existing tranny (which it is) then you should be ok. Yes the tip of the input shaft is shorter but it didn't matter in my case because the pilot bushing was the same depth as the NP435. This means the extra length of my T150 was not engaged with the pilot bushing-it just stuck into the block a little more.

The D300 t-case does need an adapter for the NP435, though as has been mentioned.

Here is a writeup on putting an NP435 behind a 4.0. I don't know how the 4.0L and 258 differ, but this may give you some ideas.

http://www.bc4x4.com/tech/2002/np435d20

- eliot -

When I did mine I just ordered a clutch kit for a 197? CJ7 with a 304 and a T150 3 speed/ That way you get the correct clutch plate and pressure plate. Plus it is a 1 1/16 10 spline just like the 435. The pilot bushing I got from Novak was 16. Also I had them redrill the adapter to clock the 300. After all that I twin sticked it and couldnt be happier

Originally posted by Comet
I just did this swap on my '78 CJ7 with a 304. I had the T150, though. My understanding is that the T150 and T176 are interchangeable, though, so I think what I have to say shouldn't matter.

Clutch assy, flywheel, pilot bushing and throw out bearing were all ordered with reference to the motor, not the tranny. So as long as the NP435 is interchangeable with the existing tranny (which it is) then you should be ok.

HOLD ON!!!
T176 Clutch disk CANNOT be used. Both are 10 spline BUT, diameters are different. T176 disk is 10 spline 1-1/8" while NP435 is 10 spline 1-1/16". Go visit centerforce.com and verify this by yourself.

For the NP435 you need to use a T150 Clutch and pressure plate. The input in the T150 and the 435 both a 1 1/16 10 spline.

As far as the Clutch goes I am using my stock clutch setup(mech.) it works fine. You have to use the clutch for from the T150 though.

Originally posted by Comet
Clutch assy, flywheel, pilot bushing and throw out bearing were all ordered with reference to the motor, not the tranny.

Bad info!!! You just happened to luck out since your T150 and the NP435 shared the same size and splines on the input shaft.

As others have said as long as you get a clutch for a '76-79 CJ with a T150 you'll get the right clutch kit.

The clutch fork on '76-86 is the same, so the throwout bearing is determined by whether the pressure plate is a diaphragm type or a three finger type. The stock clutch from '76-81 is three finger, 82-86 is diaphragm type. The tranny input shaft has nothing to do with it.