XJ d44 stock with 4.10's

shimmy · Mar 10, 2005

i picked up a xj44 with tow package, and was wondering if it is possible that it has stock 4.10 gears and not 3.55. i opened the diff and the ring looks larger than 3.55.

heres the number from the ring and pinion
#4 10 87SPICERT18437MAIBC951 46 13

brandon
PS, if its 4.10's would i need to change carriers when going to 4.56 or 4.88?

043500 · Mar 10, 2005

Anything is possible...BUT the last 4 digits I believe are what determines the ratio. Yours are 46 13 46/13 is 3.538 (or 3.54) so chances are that's the ratio.

If it was a 4.10 then no you would not need to change carriers. The break for a D-44 is 3.92 and numerically lower and 3.93 and numerically higher.

Yucca-Man · Mar 10, 2005

That's 3.54 - as was noted, 46 (ring gear teeth)/13 (pinion teeth) = 3.54 and you'll need a new carrier.

89xj · Mar 10, 2005

shimmy said:
i picked up a xj44 with tow package, and was wondering if it is possible that it has stock 4.10 gears and not 3.55. i opened the diff and the ring looks larger than 3.55.

heres the number from the ring and pinion
#4 10 87SPICERT18437MAIBC951 46 13

brandon
PS, if its 4.10's would i need to change carriers when going to 4.56 or 4.88?

the ring gear i bigger because its a d44. as already noted, its the number of teeth that determine the ratio.

shimmy · Mar 10, 2005

thanks guys! i'm going to be changing the ratio, has anyone had experience running "thick gears" so no carrier change is needed? BTW how much is a new carrier?

brandon

XJ d44 stock with 4.10's

shimmy

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043500

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Yucca-Man

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89xj

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shimmy

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