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Unread 03-12-2014, 01:50 PM   #1
pheaz
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92 Renegade 4.0 engine,tranny and tcase

92 renegade 4.0 motor/tranny swap?
I have a chance to get a low milage 4.0,auto tranny, transfer case, all intacted, out of a 94 Grand Cherokee. From what I have researched, my 92 Renegade 4.0 has a 32RE trans.(3 speed) and the 94 Grand has a 42RE (4 speed),.Not sure of transfer case number yet. What problems if any will I have with a complete change out? (motor,transmission,transfer case).

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Unread 03-12-2014, 01:57 PM   #2
Jeepsr4me
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driveshaft length since the 42 is longer
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Unread 03-12-2014, 03:18 PM   #3
XJ93
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Are you sure you have the RE and not the RH?
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Unread 03-12-2014, 07:52 PM   #4
pheaz
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Petty sure it's the RE. I worry about the 42 being longer. As for engine wise pretty well the same I guess. Original engine blown and tranny was slipping abit. If the transfer is different will my old one bolt up to the 42 trans?
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Unread 03-12-2014, 08:59 PM   #5
Jeepsr4me
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yes your old transfer case will bolt right up
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Unread 03-12-2014, 10:01 PM   #6
pheaz
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Dumb question here but what issues may I run into? (Linkages, sensors, etc etc) how long should this Jeep operation take?
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Unread 03-13-2014, 02:04 AM   #7
carnuck
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Check the length of the stickout on the trans. 42RE may have 15/16" longer output. PartsMike sells a 1" clocking ring to fit.
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Unread 03-13-2014, 04:35 AM   #8
superj
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the grand cherokee transmission is known for needing the have the bands adjusted regularly too or it takes a while to go in gear when you shift to reverse. the grand cherokee tcase is full time 4x4 also. but, like mentioned above, your 231 tcase might bolt up and if it doesn;t, its not hard to open the tcases and swap the part that doesn;t fit.

i had a 93 grand cherokee and swapped to wrangler 231 tcase once upon a time. my grand cherokee had 2xxk miles on it when some chick fell asleep with cruise control on and totalled it out from under the wife and i at a stop light. great truck
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Unread 03-13-2014, 09:03 AM   #9
pheaz
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As always, THANK YOU for the good info.
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Unread 03-13-2014, 12:06 PM   #10
XJ93
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Isn't the RE electronic controlled vs the RH being hydraulic though? P.O. would then have to do some wiring as well would he not?
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Unread 03-13-2014, 09:28 PM   #11
pheaz
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Great thought XJ93. I hope they're both RE, but will have a better understanding Monday morning.
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Unread 03-15-2014, 10:49 PM   #12
pheaz
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So the old is a RH and the Cherokee has a RE. So what am I up against?
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Unread 03-15-2014, 11:01 PM   #13
pheaz
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92 Renegade 4.0

I drove this 92 Renegade with a weak engine at take off tonight. I'm wondering if the motor is actually the issue. Fires right up runs good and revs smooth and quick. After driving a few miles if you come to a complete stop, on take off it spits and sputters but will eventually pick up. I tried in drive or reverse seemed to be same results. The tranny does slip abit when cold, but when spitting and sputtering the rpm pretty well hold at 1100 until she decides to go. What's your thoughts? Fuel filter changed and new plugs installed.
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Unread 03-18-2014, 12:38 PM   #14
XJ93
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Air filter, cap, rotor, good spark at the coil? Unplug the o2 sensor and see if you get the same results at operating temp.
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Unread 03-18-2014, 02:36 PM   #15
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do you smell sulfur? clogged cat will put off that smell and really bog you down. I found that out when I had a plug wire go bad and the fuel was going unburnt.
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