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Discussion Starter #1
Hey guys i have heard that i can bolt up a t5 tranny out of a cj into my 93 yj is this true. If not what will it take to make it work. I'm planning to swap a dana 300 into my jeep with dana44s out of a scout. If you guys know of any other trans that will work well besides the NV4500 let me know.
thanks
Nick
 

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First off what engine do you have in there?

Assuming you have the I6, why would you want to move to a weaker tranny then your AX-15? You can swap it with some changes to the pilot bushing. You are going to run into problems with the clutch linkage because the T-5 froma CJ is manual and th YJ is hydraulic. You will also have to spend $400 on a CPS relocation kit because the T-5 does not CPS mounting location.


BTW, welcome to the board Newbie
<IMG SRC="smilies/thefinger.gif" border="0"> <IMG SRC="smilies/thefinger.gif" border="0"> .
 

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don't know why anyone would swap in a t-5 into anything....

an ax-15 would be your cheapest (adapter free) route, but the NV4500 would be KILLER, but would require adapters for the 4.0 litre engine....i am assuming that's what you have right???
 

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Discussion Starter #4
Thanks guys. The problem i have is that this is trannie lasted about a year and is shot again. I need something better than the ax15, any ideas for a strong trannie without the cost of the NV4500. I have the I6 in it now that is slightly built and need something that can take more abuse.
Nick
 

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A little info from the JEEP MISSION STATEMENT.

8. T18
9. SM420
10. SM465
11. NP435

Take your pick and fab it up!! <IMG SRC="smilies/thefinger.gif" border="0">
 

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to repeat, the t-5 would be a downgrade. the ax-15 should be able to handle a 4.0.....

what is going out on that?

if you are gonna do a nv4500, than fargin go nuts, I stand outa da way, but if you wanna save some bucks, the ax-15 should be able to handle non-retarded driver inputs behind a 4-litre....

a DIY rebuild is an option....

still interested though, what in the ax-15 goes out????
 

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Discussion Starter #7
Ok guys heres all the info it a 93 yj with a I6 centerforce dual friction clutch, flowmaster exhaust, catco cat, clifford header, turbo city intake tube, k&n filter, bored throutle body, and airaid spacer. The synconizers keep going out in it causing the gears to crunch when shifting into 2nd and sometimes 4th gear. All i have is 32" tires now and by the end of the winter i'm going to be running 36 swampers. If the trans can't hold up to the strain then how is it going to do it with larger tires and 4.88 gears and detroits.
Nick
 

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To be honest, it doesn't sound like you have done much of an engine upgrade, You might have an engine increase of 20-30 hp which should not hurt the tranny. If it was .30 over with a new cam or stroked to a 4.7 I would say upgrade, but it's not.

What fluid are you running in the tranny if the syros are going out? Regular GL-5 has too high of a sulphur content for the syncros. Try Redline 90 if you have not already. It has helped out my shifting a lot.

The gearing and tire changes should not hurt the effect the tranny that much because the finally gear ratio will be pretty close to stock.

BTW, the center force clutch only helps out in high HP motors in high RPM clutch engagement so there is little chance that is effecting the tranny either. Your other choice is to get a NV3550 out of a newer TJ. They are a little stronger then the AX-15. They put them behind the new 4.7l V8 in the Dodge 1500's.
 

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Discussion Starter #11
Tahnks guys i will keep this in mind. What would be needed to use the Nv3550 in my jeep just a new bell housing or will it bolt right up. Maybe i'll take the advice run a different oil (red line 90) and race it as is. Thanks guys
Nick
 

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The NV3550 is a direct bolt in from a TJ. The bell housings are intagrated into the tranny body like an automatic. You might need to modify the tranny mounting bracket, but that is it. It is the same length, spline count and clutch. You might need a new pilot bearing and throw-out bearing though. I have not looked that deep into the swap.
 
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