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Author Topic: Anyone re-geared their XJ for 31's?  (Read 12323 times)

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lefty

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Anyone re-geared their XJ for 31's?
« on: November 13, 2006, 04:04:50 PM »
And if so what did you go for and where did you get it??

ta  :wink:
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JamesH

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« Reply #1 on: November 13, 2006, 05:45:26 PM »
Mines 4.10:1, just slightly deeper than stock.

I swapped in axles from a 1998 2.5 petrol XJ.

If you ever think you'll go bigger than 31's or can live with 65-70 comfortable max speed go 4.56.
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Mike Pavelin

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« Reply #2 on: November 13, 2006, 06:29:24 PM »
My 4.0 runs 3.73s, but is manual. Returns the gearing to just about what it was with the stock 3.07. The auto XJ really needs 4.11s, which, as James said are stock on 2.5 petrol XJs.
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MK1

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« Reply #3 on: November 13, 2006, 06:39:59 PM »
I think 4.10:1 is the norm for 31s. I can highly recommend Mik Stansfield.

http://www.birtydastardsjeepclub.com/fo ... .php?t=556
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greggmo

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« Reply #4 on: November 14, 2006, 12:11:18 AM »
Quote from: "Mark Barrs"
I think 4.10:1 is the norm for 31s. I can highly recommend Mik Stansfield.  :werd: . yup rednexx is the way to go.
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Mike Pavelin

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« Reply #5 on: November 14, 2006, 09:08:50 AM »
....Or buy a 2.5 4 popper for less than £500, swop the axles in, sell the rest for parts to get the money back. Free regear.
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chrisjones

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« Reply #6 on: November 14, 2006, 10:25:45 AM »
...and you gat a better rear axle too.  Bargin! :D
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God was my copilot but we crashed in the mountains and I had to eat him.

Mike Pavelin

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« Reply #7 on: November 14, 2006, 10:33:55 AM »
Yup, the 4 poppers had the Chrysler 8.25 in back.
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lefty

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« Reply #8 on: November 14, 2006, 11:54:40 AM »
Hmm, sounds like the 2.5 axles might be the way to go... Which axles are they (Dana 30? 35?)

thanks fellas
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Mike Pavelin

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« Reply #9 on: November 14, 2006, 12:00:07 PM »
D30 front, Chrysler 8.25 rear
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lefty

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« Reply #10 on: November 14, 2006, 12:03:23 PM »
Thanks Mike...

I'm not really planning on going bigger than 31" so it looks like being a good-value mod.

I like good-value cause i'm a pikey   :lol:
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Mike Pavelin

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« Reply #11 on: November 14, 2006, 01:35:17 PM »
Yup. I'm a tight dastard myself.
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JamesH

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« Reply #12 on: November 14, 2006, 04:23:31 PM »
Good luck with your search Lefty, hope you're patient!

It was a good swap, the rear axle is bigger and stronger than a D35, especially with a Detroit and 29 spline Alloy Shafts in  :)

4.10:1 is really noticeable off-road and on road I notice the benefits of it about as often as I noticed the negatives of 3.55 and 31s - uphills, loaded up with gear, burnouts(!) etc.

After this weekend I'm now thinking D60s front and rear, 5.13s and 36"+ tyres though - luckily work is hectic so I'm distracted  :roll:
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Toastie

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« Reply #13 on: November 14, 2006, 11:39:34 PM »
I had 4.10s with my 33"s, nice combo for highway and off road. Better mileage as well. If you think you may go larger (ie 35s) think 4.56.

My Willys has 5.38s but I can't go over ~60km on the road. :roll:
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lefty

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« Reply #14 on: November 15, 2006, 07:52:50 AM »
James,

Mik Stansfield his selling BaaBaa, already fiotted with 6.5" lift, bushwackers and 36's... It's a fecking beast  8)

Look in the members rides section mate
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JamesH

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« Reply #15 on: November 15, 2006, 08:28:57 AM »
I've already spoken to Mik about it.

Unfortunately I just don't have the cash at the moment - even though long-term I'll probably spend more doing less to mine  :evil:  

 :(
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lefty

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« Reply #16 on: November 15, 2006, 08:35:11 AM »
I'm in exactly the same boat mate  :(
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MK1

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« Reply #17 on: November 15, 2006, 10:00:40 AM »
........... and me!
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