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Topic Review (Newest First)
08-30-2015 10:10 AM
Photojared Hey guys!

I'm doing a 5.3/6.0 swap into my XJ. I just started a few weeks ago. I'm ordering things slowly. I just finished the wiring harness. I'm still deciding if I want to use the stock gauge cluster or swap in something different.

08-28-2015 12:28 PM
JayMcJay I can confirm that 1.25" diameter driveshafts are highly twist-able.
08-28-2015 09:44 AM
budke
Quote:
Originally Posted by JayMcJay View Post
There is certainly much more room on the drivers side of the 4L60E. If you have access to a driver drop front axle I'd go that route for sure.

That said, good luck twisting a 2"OD 1/4 wall shaft!
Awesome, that's what I needed to know. Not worried about twisting a 2" shaft, it would be the 1.25-1.5" shaft I'd be worried about.
08-28-2015 08:49 AM
JayMcJay There is certainly much more room on the drivers side of the 4L60E. If you have access to a driver drop front axle I'd go that route for sure.

That said, good luck twisting a 2"OD 1/4 wall shaft!
08-28-2015 08:40 AM
budke
Quote:
Originally Posted by JayMcJay View Post
I have been able to sneak a 1.75" OD driveshaft past the 4L60E in my buggy. It's tight, but seems to work. I think you could possibly get a 2" shaft in there, depending on how far to the drivers side your tranny is set. My links are 2" OD 1/4" wall DOM, and pretty stout. I'd have to imagine that if you made a driveshaft out of the same material you'd be hard pressed to destroy it.....
Is there more clearance on the drivers side for the shaft? I could flip the d300 if there's more room on that side. I'm more worried about twisting the shaft. I have kind of a heavy foot.
08-28-2015 04:17 AM
JayMcJay
Quote:
Originally Posted by budke View Post
Anyone?
I have been able to sneak a 1.75" OD driveshaft past the 4L60E in my buggy. It's tight, but seems to work. I think you could possibly get a 2" shaft in there, depending on how far to the drivers side your tranny is set. My links are 2" OD 1/4" wall DOM, and pretty stout. I'd have to imagine that if you made a driveshaft out of the same material you'd be hard pressed to destroy it.....
08-27-2015 06:37 PM
budke
Quote:
Originally Posted by budke View Post
What has everyone done for front driveshafts with the 4l60e and d300? I've read about the 2 piece shafts and 1.25" shafts with some pan modifications. I'd like to keep a thicker driveshaft but avoid the two piece. Is it better to run drivers drop or passenger drop for clearance? Haven't decided on what axle I'm going to run yet to replace the d30 to keep my options open for an easier swap.
Anyone?
08-25-2015 05:56 AM
Why J?
Quote:
Originally Posted by DuckHunter5.7 View Post
have a question, i just picked up a 5.3 and a 4l60e transmission for my swap. guy told me on the phone and from the add it was from a 04 silverado with 70k miles. settle at $1700 for all of it so i make the 3 hour drive and pick it up, get it home and see a number on the pcm and run it and it says its from a 99-00 model. so i ask him about it and he says at first he bought the motor and transmission because he wasnt gonna need the harness and was gonna go with the painless harness but changed his mind to get it modified and bought the harness and computer from the guy a week later. if infact the motor and tranny is from a 04 model and the harness and pcm is from a 99 or 2000 will i run in to any problems with that? the motor is not dbw, its a cable controlled throttle body. after getting a different story i kind of wished i hadnt bought it. have i screwed up or will it work? can it be reflashed and work correctly? thanks
It will be fine. I am running an 04 motor with a 00 wiring harness and PCM.
08-24-2015 09:00 PM
DuckHunter5.7 have a question, i just picked up a 5.3 and a 4l60e transmission for my swap. guy told me on the phone and from the add it was from a 04 silverado with 70k miles. settle at $1700 for all of it so i make the 3 hour drive and pick it up, get it home and see a number on the pcm and run it and it says its from a 99-00 model. so i ask him about it and he says at first he bought the motor and transmission because he wasnt gonna need the harness and was gonna go with the painless harness but changed his mind to get it modified and bought the harness and computer from the guy a week later. if infact the motor and tranny is from a 04 model and the harness and pcm is from a 99 or 2000 will i run in to any problems with that? the motor is not dbw, its a cable controlled throttle body. after getting a different story i kind of wished i hadnt bought it. have i screwed up or will it work? can it be reflashed and work correctly? thanks
08-24-2015 10:50 AM
budke What has everyone done for front driveshafts with the 4l60e and d300? I've read about the 2 piece shafts and 1.25" shafts with some pan modifications. I'd like to keep a thicker driveshaft but avoid the two piece. Is it better to run drivers drop or passenger drop for clearance? Haven't decided on what axle I'm going to run yet to replace the d30 to keep my options open for an easier swap.
08-19-2015 01:14 PM
Gemner
Quote:
Originally Posted by Outlawz4X4 View Post
What are people running for gears on these 5.3 swaps? I building a fairly light yj, 5.3/4L65E with 37's and am trying to decide on running 5.13's and 5.38's. I already have a new set of 5.38's but thought about trading them in for 5.13's. Any thoughts?
If you plan on driving on the road a lot I would go with the 5.13s rather than the 5.38s to get the cruising RPM down. There is way more than enough power to get you around on 5:13s and 37s without gear hunting. If your tuner gets the transmission tune right you will only downshift on pretty steep hills
08-18-2015 06:17 PM
Fordf150
Quote:
Originally Posted by waynehartwig View Post
Correct, as well as paperwork and $'s like last time

Best to match years. But if you call the wrecking yard with your info, they can tell you what they have that will interchange. Typically newer is better, than older
Thanks. This is going to be my winter project.
08-18-2015 04:52 PM
mavdog32
Quote:
Originally Posted by Outlawz4X4 View Post
What are people running for gears on these 5.3 swaps? I building a fairly light yj, 5.3/4L65E with 37's and am trying to decide on running 5.13's and 5.38's. I already have a new set of 5.38's but thought about trading them in for 5.13's. Any thoughts?
I have an older PWM 4L60 from like '96 and am running 5:38's on 40's and it runs fine. I can run 70 down the interstate without it gear hunting, i dont have a tach or I would give you rpm's! It ran well with 37's too, the motor wasn't bogged nor did it seem like it was over revving.

I defined what trans because I think the final gear ratio is a bit different in the 65's but I dont think its too far off. Anyways this was probably useless to you but I figured I would throw it out there.
08-18-2015 11:48 AM
waynehartwig
Quote:
Originally Posted by Fordf150 View Post
Thanks Wayne, I don't know why I didn't think just to contact you directly. I'm assuming I need to send you my harness and computer?

Any recommendations on what year tranny I need to find?
Correct, as well as paperwork and $'s like last time

Best to match years. But if you call the wrecking yard with your info, they can tell you what they have that will interchange. Typically newer is better, than older
08-18-2015 11:10 AM
Fordf150
Quote:
Originally Posted by waynehartwig View Post
We can add the controls back in for about $100 + shipping...
Thanks Wayne, I don't know why I didn't think just to contact you directly. I'm assuming I need to send you my harness and computer?

Any recommendations on what year tranny I need to find?
08-18-2015 07:58 AM
waynehartwig
Quote:
Originally Posted by Fordf150 View Post
Currently have a 2002 5.3 in my CJ7, with a 4 speed NP435/D300 combo. I'm thinking its time for an auto with overdrive and have been looking into a 4l60e.
150tunes.com did my original harness and computer flash and couldn't be happier with it.

My question is what needs to be done to my harness, if anything to be able to run the 4l60e?

Or would it be easier to just run a standalone controller?

Thanks
We can add the controls back in for about $100 + shipping...
08-17-2015 06:34 PM
Outlawz4X4 What are people running for gears on these 5.3 swaps? I building a fairly light yj, 5.3/4L65E with 37's and am trying to decide on running 5.13's and 5.38's. I already have a new set of 5.38's but thought about trading them in for 5.13's. Any thoughts?
08-17-2015 06:34 PM
Fordf150 Currently have a 2002 5.3 in my CJ7, with a 4 speed NP435/D300 combo. I'm thinking its time for an auto with overdrive and have been looking into a 4l60e.
150tunes.com did my original harness and computer flash and couldn't be happier with it.

My question is what needs to be done to my harness, if anything to be able to run the 4l60e?

Or would it be easier to just run a standalone controller?

Thanks
08-17-2015 06:19 AM
matts88yj Just for future reference, found out that a evap canister from a 96 XJ looks to be the winning ticket for exactly what the LS based motor needs in a YJ swap. Same external dimensions and all. Should be installing this week sometime. Will report back on my findings.
08-16-2015 09:01 PM
waynehartwig
Quote:
Originally Posted by Bo185 View Post
I ran several gen III's done mult swaps in last 15 years various different PCM's and setups . And never had a oil sensor on a GEN III. Everything works as avertised save for remote start, never had it on a swap. I thought you talking cruise control not working?. Again not needed on a Gen III. Not sure why your LM7 had an issue might have been unrelated to the oil sensor if your talking about the CC. Could be a number of things with CC as well. I am just basing the oil sensor not being needed on a Gen III based on my experience.
I don't remember. I remember looking at the Tech2 trying to determine why, and it was because of the oil pressure sensor
08-16-2015 07:12 PM
Bo185 I ran several gen III's done mult swaps in last 15 years various different PCM's and setups . And never had a oil sensor on a GEN III. Everything works as avertised save for remote start, never had it on a swap. I thought you talking cruise control not working?. Again not needed on a Gen III. Not sure why your LM7 had an issue might have been unrelated to the oil sensor if your talking about the CC. Could be a number of things with CC as well. I am just basing the oil sensor not being needed on a Gen III based on my experience.
08-16-2015 11:50 AM
waynehartwig
Quote:
Originally Posted by Bo185 View Post
I never had an issue with cruise not working on a Blue/Green DBW setup 03-05 and no oil pressure sensor. Never heard of that?

EDIT: Or did you mean Gen IV, no oil pressure, no cruise?
No, it was a Gen III... LM7 if I remember right?

Gen IV's will have weird issues, even if a code is deleted. Not just oil pressure, but others. I don't remember what it was now, but I remember the MIL was no longer on, but remote start wouldn't work anymore.

It's like the VSS or not argument with say a TH400... Some have issues, some don't. I'm not sure why it is. My only guess is without the wires hooked up the circuit is 'floating', and different hardware handle a float signal different than others. .... In the digital world everything is a 0 or 1, or 0v or 5v respectively. If it's say 3v, that's considered a floating signal, since it's neither 0 or 5v. This is bad because digital electronics aren't predictable with floating signals. One of the reasons pull up (or down) resistors are used.
08-15-2015 06:38 PM
Bo185
Quote:
Originally Posted by waynehartwig View Post
But for example no oil pressure and cruise wont work.
I never had an issue with cruise not working on a Blue/Green DBW setup 03-05 and no oil pressure sensor. Never heard of that?

EDIT: Or did you mean Gen IV, no oil pressure, no cruise?
08-15-2015 03:45 PM
waynehartwig
Quote:
Originally Posted by jkruby View Post
i have a 02 motor, and 04 wiring harness. my oil pressure sensor broke, do i need to buy a sensor for the 02, or 04 car part? i have looked them both up online and they are not enterchangable and they look different. any help will be appreciated. thanks
Get one for the 04 harness/PCM
Quote:
Originally Posted by Bo185 View Post
Just delete it and plug the hole or use for oil gauge sender. The Gen III PCM doesn't need the oil sensor. The Gen IV's do. The 02-04 are Gen III's.
02 down the oil pressure sensor doesn't go to the PCM, but 03 up does. 03 and up do use oil pressure for some things. It's not as important as the newer motors with VVT/AFM. But for example no oil pressure and cruise wont work.
08-15-2015 02:29 PM
Bo185 Just delete it and plug the hole or use for oil gauge sender. The Gen III PCM doesn't need the oil sensor. The Gen IV's do. The 02-04 are Gen III's.
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