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Old 11-22-2008, 04:41 AM   #1 (permalink)
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5.3 Jeeps

Hey all you guys that are running the 5.3l chevy motors in your Jeeps, what trans and case are you all running?
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Old 11-22-2008, 05:14 AM   #2 (permalink)
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Take your pick. There are guys running the stock 4L60e, 350 or 400, and the 700r4. There are even guys running a nv4500, nv3550, and granny gear 4 spds. Its pretty much dependent upon what you want to do.
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Old 11-22-2008, 05:46 AM   #3 (permalink)
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my question is.. I have a donor 2001 Silverado that I am going to use the 5.3 out of. Just wondering if the 4l60e and stock case (not even sure what that one is) would hold up. If so I would like to use that bc I have a DSD J10 axle
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Old 11-22-2008, 05:56 AM   #4 (permalink)
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Hey all you guys that are running the 5.3l chevy motors in your Jeeps, what trans and case are you all running?
97 TJ: 2001 Vortec 5.3, 2001 4L60e trans, Atlas II 5.0
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Old 11-22-2008, 07:44 AM   #5 (permalink)
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Hey all you guys that are running the 5.3l chevy motors in your Jeeps, what trans and case are you all running?
1981 CJ-7, 5.3L - th400 - dana 300
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Old 11-22-2008, 08:34 AM   #6 (permalink)
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would the stock tcase hold for a while (maybe a year.. tops) until I threw in an atlas?
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Old 11-22-2008, 08:45 AM   #7 (permalink)
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1997 TJ - 5.3l, TH350, Atlas 4.3.




You could use the 4L60E if you need OD, or a 700R4. Both are expensive to build, but the 4L60E needs computer control, which can add that much more complication. 700R4 will be easier, TH350 or 400 is easiest & cheaper.
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Old 11-22-2008, 09:46 AM   #8 (permalink)
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5.3, NV4500 and Atlas 5.0.
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Old 11-22-2008, 10:21 AM   #9 (permalink)
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would the stock tcase hold for a while (maybe a year.. tops) until I threw in an atlas?
it really depends on what your doing and what the rest of the driveline is, but ive seen some chevy trucks get badly abused and stay together, so i dont know why you would have a problem with it for a little while, i would run it, whats the worst that could happen? you break it and then you just order your atlas.
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Old 11-22-2008, 10:29 AM   #10 (permalink)
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97 TJ - 5.3, 4L60E, and no tcase yet.
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Old 11-22-2008, 11:01 AM   #11 (permalink)
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it really depends on what your doing and what the rest of the driveline is, but ive seen some chevy trucks get badly abused and stay together, so i dont know why you would have a problem with it for a little while, i would run it, whats the worst that could happen? you break it and then you just order your atlas.
i agree 100%
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Old 11-22-2008, 12:00 PM   #12 (permalink)
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I'm running the 5.3 with 4l60 and stock pushbutton 4x4 transfercase out of a 2002 avalanche it works fine but i wouldn't put it in to much of a bind or it lets the chain slip. I think im going to change to the np 241 or 231 with sye just to get by until i can get a good case. Also wanted to say im running dana 60's and 41 inch swampers . I havn't broke the stock case in a year of abuse.

One question for the guys with the 4l60 and the atlas. Are you running the speed sensor after all your gear reduction or in 4 lo does it think its going 100 miles per hour at 35 ?

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Old 11-22-2008, 01:45 PM   #13 (permalink)
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90 yj, 5.3, built 4l60, stak 3 speed, 60, 14, 42's
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Old 11-22-2008, 01:48 PM   #14 (permalink)
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CJ - 5.3/4L60E/Dana 300

The VSS is located on the adapter, prior to the t-case. Low range throws the speedo off by the same factor as my gear reduction.
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Old 11-22-2008, 02:15 PM   #15 (permalink)
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03' TJ - In the process of installing a 2005 5.3L (LS6 intake, 220 cam) , 4L65e tranny, and NP231 w/ 32 spline output. Also running D60, 14 bolt, 5:38's, and 42's.






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Old 11-22-2008, 03:28 PM   #16 (permalink)
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Originally Posted by jeeperjosh View Post
03' TJ - In the process of installing a 2005 5.3L (LS6 intake, 220 cam) , 4L65e tranny, and NP231 w/ 32 spline output. Also running D60, 14 bolt, and 42's.
What kind of HP & torque numbers are you expecting with the LS6 intake & cam? I could always use more power out of my 5.3...
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Old 11-23-2008, 04:46 AM   #17 (permalink)
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how many of you are running a stock TJ pump?
If not what pump are you running?
Also what axle gears are you running?

I have a 5.3 39.5's and 4.10's and it seems to have no sack, about to pull the trigger on 5.13's. Figured i'd ask
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Old 11-23-2008, 09:04 AM   #18 (permalink)
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What wiring harnesses are you guys running? I putting a 5.3 with a 4L60E and dana 300 in a 1947 Willys with 35's and 4.56 gears.
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Old 11-23-2008, 09:30 AM   #19 (permalink)
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5.3

ls1andvortec makes harnesses and know his stuff. I got my engine and harness from him and he is good tech support in SoCal.

5.3,nv4500,231
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Old 11-23-2008, 11:35 AM   #20 (permalink)
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Originally Posted by JeepNatzi#2 View Post
how many of you are running a stock TJ pump?
If not what pump are you running?
Also what axle gears are you running?

I have a 5.3 39.5's and 4.10's and it seems to have no sack, about to pull the trigger on 5.13's. Figured i'd ask
I'm running the factory yj 2.5 liter fuel pump seems to work fine . I also went with 5.38 gears and 41's it has plenty of power . I can't fully test it yet since ive got xj springs on the rear . I get serious axle wrap when i hammer it. Getting 4 linked as we speak.
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Old 11-23-2008, 12:19 PM   #21 (permalink)
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Quote:
Originally Posted by JeepNatzi#2 View Post
how many of you are running a stock TJ pump?
If not what pump are you running?
Also what axle gears are you running?

I have a 5.3 39.5's and 4.10's and it seems to have no sack, about to pull the trigger on 5.13's. Figured i'd ask
I understood the stock TJ pump doesn't put out enough PSI. The LSX engines need a minimum of 55 PSI and if I recall, the TJ pumps put out right about 50 PSI. I'm running the E2000 pump. I know there's a debate about the E2000 begin sufficient for an LSX series motor, it's been enough for my TJ so far.

I'm running 5.13's with 40's and it's perfect, it's fast enough on the street and works well offroad. I think you're gearing is too far off with 4.10's and 39.5's.
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Old 11-23-2008, 12:38 PM   #22 (permalink)
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What wiring harnesses are you guys running? I putting a 5.3 with a 4L60E and dana 300 in a 1947 Willys with 35's and 4.56 gears.

I modified a factory harness. It only required about 4hrs of work, a small fuse block and a few relays.
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Old 11-23-2008, 05:33 PM   #23 (permalink)
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97 TJ 5.3(duh) 4l60e atlas 4.3 60s front and rear 5.13 w/ 39" krawlers
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Old 11-24-2008, 03:48 AM   #24 (permalink)
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1980 CJ7 , 5.3 - Th350 - Dana300
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Old 11-24-2008, 07:44 AM   #25 (permalink)
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1992 YJ 2002 5.3L vortec - 4L60e - Stak4speed transfer case.
i got my harness done through http://www.lt1swap.com/
real quick turn around and cheap. well done also. haven't got to my fuel stuff yet.
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