can i swap a tj dana 30 intp my yj ? - JeepForum.com
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Unread 06-01-2013, 07:19 PM   #1
Xzero117
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1990 YJ Wrangler 
 
Join Date: Aug 2008
Location: Bayonne, NJ, NJ
Posts: 323
can i swap a tj dana 30 intp my yj ?

If I weld on the leaf spring perches and made some modifications to it ?

Is there any other radical modifications I have to do ? Any write ups out there ?

Its impossible to find a yj dana 30 with 3.73 gears locally yet they're everywhere for tjs

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Unread 06-01-2013, 07:55 PM   #2
TSEJEEPERS
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1993 YJ Wrangler 
 
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Location: Morton IL
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Yes it would be possible but it would also be a downgrade.
YJs have a high pinion 30 and the TJs have a LP 30.
You may have to shorten or lengthen your driveshaft.
Another option would be one out of a XJ (Cherokee) They are high pinion too.
Lots of those out there and it would probably be cheaper than the TJ 30.
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Unread 06-01-2013, 08:33 PM   #3
SeanB95YJ
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1995 YJ Wrangler 
 
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Location: Schenectady, New York
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problem with using a TJ (or XJ, ZJ and pretty much any Jeep newer than 1987) is that they are all coil spring front.

whether you choose to cut off the coil and control arm mounts and weld on spring perches - or keep the coils and convert your YJ to run coils... either way would be a fairly radical modification needed - though modifying the axle would be the lesser of 2 evils, still a bit of work. probably cheaper in the long run to get a YJ D30 and just regear it to the 3.73 gears you're looking for
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[FONT="Comic Sans MS"][COLOR="Blue"]Sean B. - Schenectady, NY - 95 YJ, 350/700r4/NP241, JB Shorty SYE, 8.8 rear, 2" BDS, 1" homebrew shackles, Daystar 1" BL, TJ flares, 35x12.50 General Grabber AT2 on 15x10 Bart D-Truckers, Polyshield polycarbonate windshield, HD over/under crossover steering
[/COLOR] [COLOR="Red"]swap/build thread: [url]http://www.jeepforum.com/forum/f22/after-almost-4-years-finally-my-own-build-swap-thread-1542284/[/url][/COLOR][/FONT]
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Unread 06-01-2013, 09:12 PM   #4
Joe Dillard
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1991 YJ Wrangler 
 
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Quote:
Originally Posted by Xzero117 View Post
If I weld on the leaf spring perches and made some modifications to it?
Yep.
Quote:
Originally Posted by Xzero117 View Post
Is there any other radical modifications I have to do?
None that I'd consider radical.
Quote:
Originally Posted by Xzero117 View Post
Any write ups out there ?
I have done a few by owners choice. We didn't bother to do a write up on any of them.
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Unread 06-01-2013, 09:57 PM   #5
SuperMidget
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Quote:
Originally Posted by SeanB95YJ View Post
problem with using a TJ (or XJ, ZJ and pretty much any Jeep newer than 1987) is that they are all coil spring front.
um... newer than 87 is all coil spring fronts? do you even know what year yj's were made?
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Unread 06-02-2013, 02:09 AM   #6
fratis
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You can't find one because all the TJ guys are swapping them into their jeeps while we are actually swapping in decent upgrades that are actually worth while.
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Unread 06-02-2013, 02:15 AM   #7
SeanB95YJ
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Location: Schenectady, New York
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Quote:
Originally Posted by SuperMidget View Post
um... newer than 87 is all coil spring fronts? do you even know what year yj's were made?
the OP was asking about using a D30 out of a Jeep OTHER than a YJ because he had trouble finding a YJ axle
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[FONT="Comic Sans MS"][COLOR="Blue"]Sean B. - Schenectady, NY - 95 YJ, 350/700r4/NP241, JB Shorty SYE, 8.8 rear, 2" BDS, 1" homebrew shackles, Daystar 1" BL, TJ flares, 35x12.50 General Grabber AT2 on 15x10 Bart D-Truckers, Polyshield polycarbonate windshield, HD over/under crossover steering
[/COLOR] [COLOR="Red"]swap/build thread: [url]http://www.jeepforum.com/forum/f22/after-almost-4-years-finally-my-own-build-swap-thread-1542284/[/url][/COLOR][/FONT]
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