post #1 of Old 02-12-2010, 02:18 PM Thread Starter
james613
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1997 ZJ 
 
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46rh transmission

i have 97 zj 5.2 with 44re and 249, vc is toast, i am wanting to swap in a 242 and a 46rh out of a 93 zj.(one tranny is hydrolic and one is electronic?)
anyone done this swap?

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post #2 of Old 02-12-2010, 08:02 PM
ratmonkey
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you need a tcm for the 46rh, it is NOT fully hydraulic.

a 46re is a simple bolt in swap.

'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

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post #3 of Old 02-12-2010, 08:12 PM Thread Starter
james613
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besides the tcm what other mods would have to be done?
have you done this swap?
wiring hookups..?
thanks
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post #4 of Old 02-12-2010, 10:17 PM
JrMechanic
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You will need the driveshafts from the 93, the 46RH is longer.

Want to swap an NP242 or NP231 into your ZJ? Here's how:
http://www.jeepforum.com/forum/f13/n...pdated-685644/
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post #5 of Old 02-12-2010, 11:07 PM
ratmonkey
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Ok. You will have a constant check engine light on. The 46rh is standalone but you'll need to do some wire harness splicing tp get it driveable.
You will need the flexplate from an early v8 as the torque converter bolt pattern changed in 96.
You will need the early grand cherokee tranny Crossmember as the mounts are different. You will need new driveshafts as the rh is longer and the 44a pinion is longer too. So no stock will fit. Same for front shaft as early grands had the long pinion d30.

Get a 46re from a niner. You'll only have to deal with the driveshaft then(and probably not because the rh is only longer due to the mech governor on the od unit.)

'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

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post #6 of Old 02-13-2010, 08:35 AM Thread Starter
james613
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check engine light... can this be solved by swappoing the computers...?
has this swap been done by anyone?
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post #7 of Old 02-13-2010, 11:44 AM
ratmonkey
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Quote:
Originally Posted by james613 View Post
check engine light... can this be solved by swappoing the computers...?
has this swap been done by anyone?
nope, you can't swap computers without swapping EVERYTHING front of the driver's seat for wiring, sensors, and emissions. including the gauge cluster which means the dash too.

stick to obdii controlled systems, if you want a junkyard upgrade, the 46re from a jeep 5.9 limited is as close to bolt in as you'll get. if you just want a stronger tranny have it rebuilt with better clutches, 48re spec OD unit, and a shift improver kit.

'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

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post #8 of Old 02-13-2010, 01:06 PM Thread Starter
james613
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do you know if the front half of the 46rh would bolt up the the rear half of the 44re?
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