05 TJ LS swap

Ron said:
Right. If you code it as a manual.
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Correct. The VSS is only needed if you have an electronic transmission. Otherwise flash the ECM as a manual trans and use whatever manual or old school auto you wish.

But if he uses the factory GM trans, then yes he will need to figure out the VSS
 
Croatan_Kid said:
@marty79 I'm not sure how well that AC compressor in the stock bracket is going to fit vs the TJ frame. That's the one thing I'm not sure of. I'm no Jeep guy, but there are plenty of people that offer different belt drive setups if need be. It's just more doll hairs!
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marty79 said:
@LBarr2002 that was a awesome build read, just finished. I got lost on some of the stuff but great build, great work and lots of useful information!! You saved me a ton of headache on the A/C compressor now knowing don't even bother leaving the factory GM one on the motor when mocking up the install.
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You could make the factory compressor work with a frame notch, but depending on how much lift you have and your suspension setup, you'll have clearance issues with passenger side upper control arm. I wanted to keep it in stock location and on the separate belt. Even looked at the dirty dingo hotrod kit that mounts the mini compressor in that location. I think it would fit without cutting the frame, but I still would have had control arm issues.
 
marty79 said:
by chance have a link or part number to the specific radiator you got for $425 with fan/shroud and all. That's a heck of a deal reading through your build!! I'm enjoying it, thanks. (If not no biggie, I'll do some hunting around once I'm done reading all through your 15 pages lol) gonna be a long night
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It's this one 87-2006 Jeep Wrangler TJ YJ V8 ls LS1 LS2 LS3 WITH FAN & SHROUD

I called and got a better price than list, but I think the list price has also gone up.
 
Everything has gone up :(
 
Just ordered like $1800 worth of parts. Cant wait to get this started.
@Chris_Keziah you interested in programming the computer?
Or anyone else?
 
Fixing to sell this np246 so I can get the better one. What sensors do I need off it besides both speed sensors?
 
Just the rear one for the VSS. AutoTrac cases are the only ones with a front speed sensor.
 
Croatan_Kid said:
Just the rear one for the VSS. AutoTrac cases are the only ones with a front speed sensor.
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This has 2 vss on rear tail shaft, I took both.
 
One is probably for the speedo and the other for AutoTrac function. Likely separate systems.
 
Croatan_Kid said:
One is probably for the speedo and the other for AutoTrac function. Likely separate systems.
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I figured but same sensor so now he'll have a backup. They're all 3 the same part number. 2 on tailshaft one on front output for 4lo I reckon
 
The front output is for AutoTrac also. It applies power when the rear slips.
 
Croatan_Kid said:
The front output is for AutoTrac also. It applies power when the rear slips.
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Dang which one is for 4lo then? Freaking million sensor on these things lol
 
So with a manual tcase I'm getting, does ecu need programming to turn off the 4lo sensor?
 
None of the sensors on an AutoTrac are for low range. We covered this earlier. The transfer case encoder/shift motor tells it when it's in low range on an electric shift transfer case. You'll likely have to change some wiring around or find a harness from a truck that had a manual shift case in it. It's probably not super complicated to make it work, but I haven't done it...so I don't know what is required.

Btw, the left rear sensor is the VSS for the PCM and speedometer.
 
marty79 said:
Just ordered like $1800 worth of parts. Cant wait to get this started.
@Chris_Keziah you interested in programming the computer?
Or anyone else?
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You can talk to Tru Dyno Sports in Conover. They have done tuning/programming on a number of LS swaps.
 
marty79 said:
So with a manual tcase I'm getting, does ecu need programming to turn off the 4lo sensor?
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I don't remember what transmission you're running, but if it's an electronically controlled auto you'll need to either tell the computer when you're in low range or put your vss in front of the tcase. I've seen people put a toggle switch (which is an extra step to remember and janky in my opinion) or rig a switch on the linkage that activates in low range.

My vss is in the adapter housing between trans and tcase and the computer always operates as if in high range.
 
LBarr2002 said:
I don't remember what transmission you're running, but if it's an electronically controlled auto you'll need to either tell the computer when you're in low range or put your vss in front of the tcase. I've seen people put a toggle switch (which is an extra step to remember and janky in my opinion) or rig a switch on the linkage that activates in low range.

My vss is in the adapter housing between trans and tcase and the computer always operates as if in high range.
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This 4l60e has it in rear tcase, along 2 others. 4lo isn't a big concern right now, getting everything else running working then probably mount a auto switch on shifter as others have done
 
And the fun begins now that I got some parts in!
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Ok I feel stupid but it appears engineers got screwy again lol.
Something with this thermostat and new water pump just ain't working here..little help?
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