410's or 456's - JeepForum.com
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post #1 of 2 Old 04-05-2002, 07:47 PM Thread Starter
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410's or 456's

4.2 with 33's, should I go with 410's or 456's?

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post #2 of 2 Old 04-06-2002, 05:53 AM
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Location: Chattanooga
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I would lean more towards the 4.56 if you have a Overdrive transmission. If it is an automatic the 4.10's is the lowest option you have unless you never plan to get over roughly 55 mph. The pinion gear on a 4.10 will generally be stronger than that of a 4.56 of the same brand. I would look for original 4.10's out of 4 cyl that are as close to new as possible. You just can;t beat the Dana/Spicer gears for reliability and fit perfection.

94 YJ 4.0/3spd dana 60/44 w/35's 9" of suspension lift
Sold-06 TJ X 4spd auto 3.73
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