Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: cleggy on October 10, 2007, 03:23:03 PM

Title: gear box
Post by: cleggy on October 10, 2007, 03:23:03 PM

hi dose any one no if aTJ 2.5 box is the same as a 4.0 box
               cheers

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Post by: jeepey on October 10, 2007, 03:42:02 PM

i dont think so!
The 2.5 gearbox is an ax-5 and has a smaller pilot bearing. The ax-5 will not hold up very long to the power of the 4.0. Also i think you'd need a 2.5 transfer case too as the input shaft on a 4.0 transfer case (np231) is 23 spline and 21 on the 2.5.

(info taken from search on www.Jeepsunlimited.com/forum (http://www.Jeepsunlimited.com/forum))

Andy

Title: Re: gear box
Post by: isle of man on October 10, 2007, 05:13:54 PM

Quote from: "cleggy"

hi dose any one no if aTJ 2.5 box is the same as a 4.0 box
               cheers

it's not the same, you need a ax15.




peter henry

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Post by: cleggy on October 10, 2007, 09:05:18 PM

cheers guys

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Post by: JamesH on October 10, 2007, 11:16:21 PM

Later 4.0l TJs (post 00/01 I think) have NV3500 gearboxes I believe.

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Post by: isle of man on October 11, 2007, 07:12:20 AM

Quote from: "JamesH"

Later 4.0l TJs (post 00/01 I think) have NV3500 gearboxes I believe.

true it's a nv3550 (i have one in my 2004 wrangler) but ceggy's wrangler does not fit the model year change, saying that it could be made to fit........i believe it's a recognised upgrade. but we are deviating from the original question.



peter henry

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Post by: cleggy on January 31, 2008, 10:14:40 PM

HI THERE IS A GUY SELLING A RECONDITIONED AX15 GEARBOX .HE SAYS ITS OUT OF A YJ .WOULD IT FIT STRAIGHT INTO MY TJ OR WOULD IT NEED ALTERING? ANY ADVICE WELCOME   CHEERS CLEGGY            
PS......... DONT KNOW HOW TO GET A LINK UP TO EBAY

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Post by: greggmo on January 31, 2008, 10:19:18 PM

http://cgi.ebay.co.uk/JEEP-WRANGLER-YJ- ... dZViewItem (http://cgi.ebay.co.uk/JEEP-WRANGLER-YJ-OR-TJ-GEARBOX-AX15_W0QQitemZ150209247050QQihZ005QQcategoryZ116508QQssPageNameZWDVWQQrdZ1QQcmdZViewItem)

this one?

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Post by: isle of man on January 31, 2008, 10:30:14 PM

waggers has got one.........in old faithful, perhaps you could combine it when you come over this year?







peter henry