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post #1 of (permalink) Old 02-11-2002, 08:31 PM
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YJ: 258 auto same bolt pattern as 2.5?

Hi I am looking at a 91 YJ 4popper 5 spd I want an auto will the auto from an 87 6cyl wrangler bolt up to the motor?

93ZJ under construction 87 XJ temporary wheeler 89 MJ Driver & parts hauler.
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post #2 of (permalink) Old 02-12-2002, 07:51 AM
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Re: YJ: 258 auto same bolt pattern as 2.5?

Most likely, no.
BH bolt pattern on the engine is different from AMC 2.5L to other AMC (i.e. 4.2L from '87)
Not for sure on this - but I think 2.5L Jeeps get the 904 auto transmission and 4.2L/4.0L Jeeps get the 999 auto transmission?

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post #3 of (permalink) Old 02-12-2002, 08:43 PM
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Re: YJ: 258 auto same bolt pattern as 2.5?

i gotta cj with an '80 258 block. it came with an '85
999/d300. i bought an '81 904/d300, and put it in for a while. my manual says the 904 only came on a 4 popper (???).
someone said the 904 has (???) one less clutch pack..
i have also seen magazine 6/8 cyl jeeps with 904s. -
yup. i are confused.

when in doubt.........
empty the magazine.
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