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4,0l auto engine swap

jonnybrowne

NAXJA Forum User
Location
renfrew ontario
hi i'm looking to use the engine from my cherokee which is a 89 4.0l auto in my 87 yj which is a 4.2l 5 speed do i need a manual ecu or will the auto one work. can anyone tell me anything else i need to swap i plan on using
engine-4.0l
wiring harness
all emissions stuff
from the cherokee
and then i would like to keep from the yj
transmission transfer case and all driv terrain
 
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