HELP! T-18, Dana 300, 360, 258. I have questions

[84yellowCJ7]

This is what I am going to try to do for the first stage of my summer plans for the Jeep. I will explain what I want to do then I will list the questions. Let me also give some background if you don’t know. Right now I have a totally tore apart 360, and a T-18(not torn a part) out of a J10 truck. In the Jeep now, I have the 258, T-5 and Dana 300. What I want to do is get my transmission and transfer case set to the way I want it and the bugs out before the V-8. I am thinking of putting the T-18 with the 258 and I want to index the Dana 300. I want to try to have all this done between May 10 when I can first work on it and June 6 when the next off road event is. The 360 will be built though July and hopefully installed before I go back to school in August. Now that you have and idea of what I want to do.

1. I will need a new clutch disk for the T-18. Will I be able to re use it when switch to the 360? I think I am going need all new with the 360.

2. I want/need the short input shaft out of the Ford T-18 2wd right? What parts will I need to order to put that shaft into the J-10 transmission? Parts that I need to order, I remember something about a longer bearing.

3. Will I be able to index the transmission myself with out buy and expensive adaptor? If so, can you refer me to a web site that does it?

4. How hard would it be to twin stick the Dana 300 while I have it off? Homemade of course limited money.

5. I will have to check on this when I get it all back together under the Jeep but should my drive shafts all still fit? After the V-8?

I think that is all for now. If I think of anymore I will revise.

Thanks.

[ozarkjeep]

you ll need the ford input shaft, the ford bearing retianer, and since you have to take the tranny apart to install the shaft, Id make darn siure the bearings,gaskets,seals, and sycnhros are in good shape.

[84yellowCJ7]

Know one can help me?

Question 1: You can use the same clutch disc. Clutch disc differences aren't determined by the engine. They are determined by the input shaft size and spline count of the transmission.

Question 2: Answered by Ozark

Question 3: What do you mean by "index" the transmission? If the transmission had a Dana 20 behind it there is no way to install a Dana 300 without an adapter.

Question 4: The difficulty level depends on your fabrication skills. It will be as hard as you make it.

Question 5: New driveshafts will most likely be required with the tranny swap. The V8 swap won't change the position of the tranny/tcase so no more changes there.

[84yellowCJ7]

What I meant by index is rotate it around for more ground clearance. I am not sure what transfercase what on the transmission orginally it is an AMC. My dad said they should bolt up. I really hope that they due. Lets assumme that they do bolt up will I be able to rotate it with out a rotation kit.

[ozarkjeep]

they wont bolt up, the odds are about 1:1992384745.

the ONLY J truck that came with a T18 that would bolt to a Jeep CJ dana 300, is a 81-83 J20.

and its really a bit too long to use in a CJ.

when you buy an adapter to use your dana 300 behind the T18 youll be able to clock it some if you wish.

But again, WHY, the adapter to teh dana 20 is factory, ots shorter, and the lo range is on the dana 20 is usually plenty with the Granny lo 1st gear of the T18

[84yellowCJ7]

I don't have the dana 20. We got the transmisson with a bunch of parts when we bought my bothers Jeep.

[ozarkjeep]

dana 20s are easy to find and cheap too.

BUT youll need the "bull gear" to still be on teh output of your T18, if it isnt its quite expensive to replace.

spend $50-$100 on a dana 20 bolt it up, and run it.