Author Topic: dead 2.5 swap need help!  (Read 1855 times)

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jaywiz1977

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dead 2.5 swap need help!
« on: February 26, 2009, 07:57:23 PM »
Ok guys I finally killed my 2.5L 5speed,and am going to be doing a swap for more power.Decided to throw a mpi 4.3 in it am wondering what trans would be a good one to go with,and what kind of donor it would come out of(junk yard parts)want to stay in a 5 speed.I use this for my DD and a mild wheeling session from time to time,so i want it strong(only want to tear it down once).I live in northern ohio and any help as to where to find it and what i am looking for would be great.Keep in mind i need to keep this on a meager budget to keep the wife happy.

jaywiz1977

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Re: dead 2.5 swap need help!
« Reply #1 on: February 26, 2009, 08:04:22 PM »
BTW it's a 95 YJ (235thousand mi on it when it gave out)and the plan is for a 4 inch lift and 33in tires so still want to achieve decent gas mileage(able to use 5th gear on the highway)and plenty of grunt when its buried up to the body in mud.

Torch_Ind

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Re: dead 2.5 swap need help!
« Reply #2 on: February 26, 2009, 08:11:02 PM »
the 4.3L GM engine?  if so I'm pretty sure you could use any older manual that fit a v8. but don't under stand why you wouldn't go 4.0L with the ax15?

Offline Jeffy

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Re: dead 2.5 swap need help!
« Reply #3 on: February 26, 2009, 08:17:16 PM »
The 4.3L uses the same bell housing bolt pattern as the V8's so you can mix and match to your delite.  Although, I wouldn't discount the 4L60E either.  It's a slushbox but a very good one.
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Torch_Ind

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Re: dead 2.5 swap need help!
« Reply #4 on: February 26, 2009, 08:18:49 PM »
The 4.3L uses the same bell housing bolt pattern as the V8's so you can mix and match to your delite.  Although, I wouldn't discount the 4L60E either.  It's a slushbox but a very good one.

I had one of them apart on my bench just a few weeks ago.. there not to bad but I hate auto's no fun lol

jaywiz1977

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Re: dead 2.5 swap need help!
« Reply #5 on: February 26, 2009, 08:21:59 PM »
yes the 4.3 gm. my buddy just did a 4.3 to 350 swap in his 2002 extreme S-10 and said i could have the 4.3 ecm harness,and mounts the whole works for free 30thou on that motor!sometimes i do have a bit of good luck.not into trannys so i know nothing about them or what will mate up with my np231.

jaywiz1977

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Re: dead 2.5 swap need help!
« Reply #6 on: February 26, 2009, 08:23:34 PM »
no autos for me!!not so concerned about the front end it's picking the right one tht will match up with the transfer case and not run all the way to the rear axel.looking for a short one to get more driveshaft length.any ideas?
« Last Edit: February 26, 2009, 08:26:11 PM by jaywiz1977 »

Torch_Ind

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Re: dead 2.5 swap need help!
« Reply #7 on: February 26, 2009, 08:44:00 PM »


there is a 4L60 & 4T45-E out of a cobalt lol

Torch_Ind

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Re: dead 2.5 swap need help!
« Reply #8 on: February 26, 2009, 08:44:49 PM »

jaywiz1977

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Re: dead 2.5 swap need help!
« Reply #9 on: February 26, 2009, 08:49:09 PM »
this is exactly why i want strong and manual.those transmissions you can flush! :flush:i had one let me down in my blazer.

Torch_Ind

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Re: dead 2.5 swap need help!
« Reply #10 on: February 26, 2009, 09:01:03 PM »
what year of blazer?

jaywiz1977

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Re: dead 2.5 swap need help!
« Reply #11 on: February 26, 2009, 09:04:46 PM »
97 it was a 4L60E though.still something in the valve body gave out and cost me a bundle.

Torch_Ind

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Re: dead 2.5 swap need help!
« Reply #12 on: February 26, 2009, 09:07:13 PM »
sounds about right lol.

I have been looking throw my gm access site and depending on years of truck there is a lot of different standards. not sure witch trans would be the best. never seen a standard truck come in for anything other then a clutch..

Torch_Ind

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Re: dead 2.5 swap need help!
« Reply #13 on: February 26, 2009, 09:08:59 PM »
also very rare to see a standard in one to begin with you pretty much have to order the truck in to get on off the lot

jaywiz1977

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Re: dead 2.5 swap need help!
« Reply #14 on: February 26, 2009, 09:36:48 PM »
this is what i'm saying.they build strong 5 speeds! I think they came in some of the w/t.doen't have too be a gm tranny but thats the motor i want in there,any sugestions on a tranny?you can't find a junk yard ax15 in my area,or any wranglers(or parts) in a junk yard in my area. this is why i'm asking what trans would be a good one and what should i be looking for in the bone yard to take it out of to fit in my jeep between the np231 and my new(to me) vortek 4.3