I need help...a good bit of it too

[layedout72]

Alright, most of you guys are probably tired of my amateur questions when it comes to motors/transmissions and anything related, but I am just trying to get my motor and tranny mated back together to put in the truck. Doesn't have to be running, just need the motor back in the truck. Dad is getting a riding mower, and needs the parking room that the motor is taking up.

What do I need, and in what order do the parts go, for (I believe I have) a NP435. The tranny tag reads two lines. The first being "RAB N", with the second one reading "DKCC0490" What does this mean? I have NEVER done this before, and while I probably bit off more than I should have for one meal......I wanted to learn.....the hard way.

[390Nut]

If you don't need it running, and can put the clutch assembly in later (don't need to pull the motor for that) you just need the bellhousing bolted up to the engine block, and the tranny bolted to the bellhousing with the crossmember under it. Attach the driveline to the tranny, and leaving it in neutral you can push it around as needed.

If you want it completely back together, you'll need the flywheel bolted to the crank, pilot bushing IN the crank, clutch disc with pressure plate bolted to the flywheel, (aligned so the tranny can bolt up properly) clutch fork with throwout bearing attached to the end in place inside the bellhousing, bellhousing bolted to block, tranny gently guided into place into the bellhousing and bolted down, crossmember back under tranny, attach driveline to tranny.

Pretty much how it goes, if you want it driveable you'll need to adjust the clutch properly. Make sure the flywheel, pressure plate surface, and clutch disc have NO contamination if you plan to drive it. You'll ruin your disc and pressure plate, or the flywheel will need to be turned.

Oh, and assembly is pretty much the same for any manual tranny, no matter the type (unless it's in a 4x4 then you've got a transfer case too)

[layedout72]

Alright, I will look in my book for all that stuff, to make sure I do it right. Does it really need to be off a stand to get the tranny and all put together. Does everything really mate to the block, and THEN the tranny? I don't have access to a lift, unless I rent it for 25 dollars a day, so any "short cuts" will help a lot. I am going to use all the stock parts that I pulled out as they worked when I pulled them. What is the relatively thick metal plate that mounts to the tranny?

[390Nut]

Forgot the block plate. Looks like a big half round plate, around 1/16" thick, with a big hole in the center, and a smaller one to one side of the plate (which is for the starter). That goes between the bellhousing and the engine block.

You're going to be hard pressed to get the engine/tranny combo into your truck without pulling the entire front end off your truck. It can be done, but it's a LOT easier to put the tranny up into the truck with a floor jack and an extra pair of hands. I've tried it both ways, and getting the engine and tranny into the truck as a unit is a trial and error PITA, as you have limited room between the cab and the crossmember. (at least for a 4spd. They are very tall)

Your call how you wish to proceed, but you CAN'T install the tranny onto the block while it's on the stand, unless you have a stand that mounts to the sides of the engine, at the motor mount area.

[390Nut]

On another note, you can put the engine into the truck without the tranny and bellhousing. It's better if you DO put the tranny in, but it's not necessary if all you are doing is pushing the truck around to make space. You just need a way to tie the engine down at the front and rear (chain or tie-down straps) to keep the engine in place. The tranny is small enough to pick up and put in the bed if necessary, just to get it out of the way. Get some extra hands though, so you don't hurt yourself (these things are freaking HEAVY, and will give you a hernia, or ruptured disks in your back. )

[layedout72]

I think I forgot to mention the truck is torn down haha. The whole front assembly is off. I didn't mean install the tranny while it is on the stand (may of sounded like that, as I said in the other thread...i suck at explaining) what I meant is, can I install the clutch and all this into the TRANNY while the motor is on the stand, and I am waiting for access to the lift I rent. Install the fork/bearing/clutch/ onto the tranny before even having the motor off the stand, or no?

[390Nut]

In a word, no.

You need to bolt the flywheel to the crankshaft, the clutch pressure plate to the flywheel with the clutch disk aligned and sandwiched between the flywheel and pressure plate. You can bolt the bellhousing to the tranny with the clutch fork in place, but it's a royal PITA to get it up into place that way, because of clearance issues. Again, it can be done, but it is MUCH easier to place the tranny up to the bellhousing if the clutch and bellhousing are already installed on the engine.

However, if you've got the entire front clip off the truck, it shouldn't be too difficult to slip the engine/tranny combo into place. Just keep in mind that's about 1000 pounds of metal there, and it's going to go where it wants to without lots of leverage. Watch your fingers/hands/other body parts when installing this way. Even 2 ton-rated hoists can only handle so much weight when they are extended even a little, and less so when extended further.

Take it slow, and you should be able to manage it that way. Just don't want to here you lost an arm or leg because you got crushed! (and you better believe it can happen!)

If you decide to do it this way, let the engine down to the ground (on some blocks) so it is stable while you bolt the bellhousing/tranny and associated parts to it. Don't try it while the engine is hanging in the air.

[layedout72]

Sounds like a wonderful time! (who am i kidding) I will get it done, shouldn't be a problem. Thanks a TON man, helps me out a lot. Will get the lift this coming friday so I have it all next weekend!