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Old 05-18-2019, 03:51 PM
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Locker

Iím asking for a friend but does anybody know if a lunchbox locker for the Dana 30 is the same part for both yjísand TJís


1992, 4.0,5 spd, BDS 4.5 heavy duty lift, jb conversions ss sye, 8.8 with ARB, Aussie front, tj shafts, dual dia.brake booster, 33Ē bfg a/t

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Old 05-18-2019, 04:29 PM   #2
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It is not.
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Old 05-18-2019, 04:31 PM
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Ok thanks


1992, 4.0,5 spd, BDS 4.5 heavy duty lift, jb conversions ss sye, 8.8 with ARB, Aussie front, tj shafts, dual dia.brake booster, 33Ē bfg a/t
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Old 05-18-2019, 08:15 PM   #4
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It is not.
Just asking for curiosity, Are the splines different or the shaft diameter or???
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Old 05-18-2019, 08:17 PM
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Just asking for curiosity, Are the splines different or the shaft diameter or???

I doubt itís the spline shaft or diameter because I have TJ shafts?


1992, 4.0,5 spd, BDS 4.5 heavy duty lift, jb conversions ss sye, 8.8 with ARB, Aussie front, tj shafts, dual dia.brake booster, 33Ē bfg a/t
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Old 05-18-2019, 08:20 PM   #6
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Well then, somebody explain to me why a TJ axle shaft fits in a YJ???

A D30 is a D30 yes it will fit
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'98 TJ 5sp Super 35 D30 w/Aussie 5.13 on 33's
'94 YJ 5sp 4.88 D35/HP30 sitting on 33's
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Old 05-18-2019, 10:11 PM   #7
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I am pretty sure they are the same but not 100% i would do some part number referencing to be 100% sure.
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94, 4.0/NV4500/NP231HD w/JB Conversions super short SYE, 4.5" Rubicon Express lift, JKS 1.25" body lift, Dana 489's w/OX lockers 4.88 gears, Tom Woods drveshafts, 35" BFG KM3's, WFO boomerang shackles, Warn XD9000 winch, Doug Thorley header, JBA mid pipe, Borla cat back.
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Old 05-19-2019, 12:35 AM   #8
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Yep they are the same
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Currently in the stable...
97 tj 2.5 5 speed stock... 97 tj 4.0 5 speed stock....04 tj 4.0 auto 4" and 33's... 98 tj roller for future build... 94 yj sahara 4.5" RE and 33's... 92 yj chev V8 3/4 ton axles and 38's... Cj5,7,yj,xj,ex mud dragster turned woods buggy

TJ dash speakers that actually rock! Kicker sub and amp in center console
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Old 05-19-2019, 12:44 AM
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Yeah, found the fitment years for all the vehicles. Thanks everyone.


1992, 4.0,5 spd, BDS 4.5 heavy duty lift, jb conversions ss sye, 8.8 with ARB, Aussie front, tj shafts, dual dia.brake booster, 33Ē bfg a/t
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Old 05-19-2019, 10:07 AM   #10
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My apologies. I assumed because of the high pinion - low pinion they would be different.
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Old 05-19-2019, 12:30 PM   #11
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My apologies. I assumed because of the high pinion - low pinion they would be different.
The only difference between high pinion and a regular D30 is the reverse cut ring and pinion. Of course, the high pinion is stronger, also a tad bit more clearance for the driveline and better driveline angles.
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'98 TJ 5sp Super 35 D30 w/Aussie 5.13 on 33's
'94 YJ 5sp 4.88 D35/HP30 sitting on 33's
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Old 05-21-2019, 06:55 PM   #12
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Considered a locker just for the front axel D30. Was told chromemoly axels and slip shaft, and maybe even a tranny upgrade.
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Old 05-22-2019, 05:58 AM   #13
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Considered a locker just for the front axle D30. Was told chrome-moly axles and slip shaft, and maybe even a tranny upgrade.

Have you ever been off road?


Weight transfer will tell you with only a front locker you gain very little traction.
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'98 TJ 5sp Super 35 D30 w/Aussie 5.13 on 33's
'94 YJ 5sp 4.88 D35/HP30 sitting on 33's
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Old 05-22-2019, 09:10 AM   #14
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Not true.... front locker can be VERY helpful... if you don't think the front does much, try wheeling in 2wd
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Currently in the stable...
97 tj 2.5 5 speed stock... 97 tj 4.0 5 speed stock....04 tj 4.0 auto 4" and 33's... 98 tj roller for future build... 94 yj sahara 4.5" RE and 33's... 92 yj chev V8 3/4 ton axles and 38's... Cj5,7,yj,xj,ex mud dragster turned woods buggy

TJ dash speakers that actually rock! Kicker sub and amp in center console
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Old 05-22-2019, 11:25 AM   #15
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Well, actual experience tells me a whole lot different. And I didn't say it wouldn't help, I said with weight transfer there is very little gain. Ever try to climb a big hill, the front end is light rear end heavy. Front will lose traction before the rear.
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'98 TJ 5sp Super 35 D30 w/Aussie 5.13 on 33's
'94 YJ 5sp 4.88 D35/HP30 sitting on 33's
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Old 05-22-2019, 12:23 PM
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I went through the Rubicon 2x and often forgot my rear was not locked. I said, letís see how far we could go without it. It was seldom used or needed. The front lunchbox was the cheapest and best upgrade I made. Granted I would prefer the ARB up front as well but it wasnít in the budget at the time. Iím not sure if I will ever change to a selectable only because it only sees the trails maybe once a year(mainly a daily driver). But Iím very impressed with the performance of the lunchbox.


1992, 4.0,5 spd, BDS 4.5 heavy duty lift, jb conversions ss sye, 8.8 with ARB, Aussie front, tj shafts, dual dia.brake booster, 33Ē bfg a/t
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Old 05-22-2019, 02:04 PM   #17
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Well, actual experience tells me a whole lot different. And I didn't say it wouldn't help, I said with weight transfer there is very little gain. Ever try to climb a big hill, the front end is light rear end heavy. Front will lose traction before the rear.
So your "actual experience" includes wheeling the same jeep both with open diffs on both ends and w the front locked and open rear?
My "actual experience" does and it makes a huge difference...

For those that are actually interested... it wasn't my jeep, it was a close friend's 4 cyl yj w 33" tsl's...
I had been doubtful and tried to talk him out of the front locker.... he ignored me and got it anybow.... 5 min into the test run after we put it in I had to admit I had been wrong.... this was about 10 years ago and to this day he still gives me shit about it....
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Currently in the stable...
97 tj 2.5 5 speed stock... 97 tj 4.0 5 speed stock....04 tj 4.0 auto 4" and 33's... 98 tj roller for future build... 94 yj sahara 4.5" RE and 33's... 92 yj chev V8 3/4 ton axles and 38's... Cj5,7,yj,xj,ex mud dragster turned woods buggy

TJ dash speakers that actually rock! Kicker sub and amp in center console
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Old 05-22-2019, 02:39 PM   #18
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This might get interesting.
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Old 05-22-2019, 03:44 PM   #19
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This might get interesting.
No, it won't I'm not going to continue this with him. Considering he has been a member on this forum for 2 years and has well over 6000 posts it would be a safe assumption that he spends more time behind his keyboard than he does wheeling.



Nuff Said
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'94 YJ 5sp 4.88 D35/HP30 sitting on 33's
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Old 05-22-2019, 04:32 PM   #20
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^ yes you will.... maybe not on this thread but there will be plenty more chances for you to consider someone stupid because they don't do something the same way you do it....
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Currently in the stable...
97 tj 2.5 5 speed stock... 97 tj 4.0 5 speed stock....04 tj 4.0 auto 4" and 33's... 98 tj roller for future build... 94 yj sahara 4.5" RE and 33's... 92 yj chev V8 3/4 ton axles and 38's... Cj5,7,yj,xj,ex mud dragster turned woods buggy

TJ dash speakers that actually rock! Kicker sub and amp in center console
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Old 05-28-2019, 08:22 AM   #21
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+1 to adding a front locker will help. Iíve got an Aussie locker up front and the damn thing feels like it wants to crawl up a wall.




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Old 06-25-2019, 12:52 PM   #22
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Have you ever been off road?


Weight transfer will tell you with only a front locker you gain very little traction.
Drove a two wheel drive S10 for ten years in the desert. Only stuck once. Did not like steep grades and avoided them, some things you only do once lol.



If you consider my military experience with the willys and hummer1;s. I would say I have a little experience off road.



I have never been in a jeep group or participated in trail runs. Im happy just watching you guys wreck your jeeps on You Tube lol. I considered the front lockers first but dont want to stress out the drivetrain. I am running 31 inch tires and will stick with that for now. With the 4.2 up front you do not think there is enough weight for the front diff with a locker to make a difference.



Might as well stay in 2wd lol. I am not worried about fuel mileage. I am worried about to much on diffs for a 400 mile trip one way to Arizona. I would need to get a locker I could disengage of course.


Anyone just have a front locker and what did you go with?
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Old 06-25-2019, 12:59 PM   #23
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Dont have mud and dont care to crawl boulders, but I get dusty and once I get the temp gauge and the rpm gauges working I will most likely look at a front locker. Dont care about what it cost, just want it to work when I put it in gear.



I use the jeep for my hobbys such as metal detecting,taking pictures, and looking at rocks. Done it with a S10/GMC for ten years. Just upped my game with the yj. Wife said we just got a little younger when we ride it.


This thread has convinced me I need a front locker.
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Old 06-25-2019, 03:04 PM
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Get a lunchbox, easy install and youíll be amazed where you could go!


1992, 4.0,5 spd, BDS 4.5 heavy duty lift, jb conversions ss sye, 8.8 with ARB, Aussie front, tj shafts, dual dia.brake booster, 33Ē bfg a/t

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