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Unread 12-26-2006, 12:56 AM   #1
drrm123
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1994 ZJ 
 
Join Date: Dec 2006
Location: Red Bluff, CA
Posts: 192
Band adjustment on 42re

I'm going to change the fluid and filter on a 42re trans in a 1994 JGC and want to adjust the bands also. Never worked on a Chrysler trans before and wondering what the bands look like on trans so I'll know what bolts to adjust. Saw previous post to adjust to 72 in.lbs. and back off 3 and 2 turns for front and rear bands. I've worked on Turbo 400 before. Cant find an on-line schematic of trans thanks for any help.

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Unread 12-26-2006, 09:48 AM   #2
ArloGuthroJeep
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2004 WJ 
 
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From an 04 FSM on the 42RE - not sure whether the ZJ's 42re is any different.


ADJUSTMENT - BANDS


FRONT BAND


The front (kickdown) band adjusting screw is
located on the left side of the transmission case
above the manual valve and throttle valve levers.
(1) Raise vehicle.
(2) Loosen band adjusting screw locknut (Fig. 68).
Then back locknut off 3-5 turns. Be sure adjusting
screw turns freely in case. Apply lubricant to screw
threads if necessary.
(3) Tighten band adjusting screw to 8 N·m (72 in.
lbs.) torque with Inch Pound Torque Wrench
C-3380-A, a 3-in. extension and appropriate Torx™
socket.



CAUTION: If Adapter C-3705 is needed to reach the

adjusting screw, tighten the screw to only 5 N·m
(47-50 in. lbs.) torque.



(4) Back off front band adjusting screw 3 turns.
(5) Hold adjuster screw in position and tighten
locknut to 41 N·m (30 ft. lbs.) torque.

(6) Lower vehicle



REAR BAND


The transmission oil pan must be removed for
access to the rear band adjusting screw.
(1) Raise vehicle.
(2) Remove transmission oil pan and drain fluid.
(3) Loosen band adjusting screw locknut 5-6 turns
(Fig. 69). Be sure adjusting screw turns freely in lever.
(4) Tighten adjusting screw to 8 N·m (72 in. lbs.)
torque.
(5) Back off adjusting screw 4 turns.
(6) Hold adjusting screw in place and tighten locknut
to 34 N·m (25 ft. lbs.) torque.
(7) Position new gasket on oil pan and install pan
on transmission. Tighten pan bolts to 17 N·m (13 ft.
lbs.) torque.
(8) Lower vehicle and refill transmission with
Mopar

t ATF +4, Automatic Transmission fluid.
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'04 WJ, 6" Clayton LA's, 242 SYE, 35" BFG MT KM2's, 4.56 gears, & D44a locked
'14 WK2 Limited w/5.7L, ORAI, & Tow Package
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Unread 12-26-2006, 09:55 AM   #3
ArloGuthroJeep
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'04 WJ, 6" Clayton LA's, 242 SYE, 35" BFG MT KM2's, 4.56 gears, & D44a locked
'14 WK2 Limited w/5.7L, ORAI, & Tow Package
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Unread 12-26-2006, 09:58 AM   #4
ArloGuthroJeep
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There a TONS of pages on the tranny so there is no way I'll post them all, but if you're looking for something more specific I'll look for it.
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'04 WJ, 6" Clayton LA's, 242 SYE, 35" BFG MT KM2's, 4.56 gears, & D44a locked
'14 WK2 Limited w/5.7L, ORAI, & Tow Package
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Unread 12-26-2006, 12:32 PM   #5
Woody
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That's the same as the ZJ 42RE, so follow those directions and you'll be good to go.
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Unread 12-26-2006, 01:15 PM   #6
drrm123
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Location: Red Bluff, CA
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Thank You very much that is exactly what I need. Haynes manuel I have doesn't have any transmission info other than removal and install of complete unit. Tranny failed and wanted to try adjusting before buying a new unit since it would not hurt anything if it did or didn't work. thought about rebuilding myself but was not to sure of how much electronics were in trans. I'll give it a try this week if it stops raining.
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Unread 08-25-2010, 11:02 AM   #7
JeepCrazyGuy
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can i ask , does the reverse clunck i hear inside the tranny mean the rear band needs adjusting?
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Unread 11-14-2011, 10:30 PM   #8
martin809
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My front band is broken, is this something that can be done in the drive way with tranny removal of course.

Any special tools needed?

Thanks for your help
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Unread 11-28-2011, 10:39 AM   #9
edwyman
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Location: Washington
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Martin - I am not sure about your question, as I have questions of my own....

I did this (adjusted bands) and now my heep (93 4.0) runs worse!

Before adjustment: when cold, would feel like a ton of bricks are in truck when taking off. After warm no problems.

After adjustment: will not initially go into gear, after reving up to 2K+ RPM's then back off a bit will engage into gear. Will then take 2K+ RPM's to start moving. Now if feels like there is 2 tons of bricks in the truck. Once moving shifts nicely but will not go over 40MPH and RPM's are 2.5K.

I will check fluid (ATF+4) when I get home but wanted to get some advice here from the pro's. I adjusted FRONT band 3 turns out and REAR (inside) band 3 turns out, after torquing to 72in lbs. Do 1/2 turns or 1 turns have that drastic of effect on operation?

Now what? Any advice would be appreaciated.

I'd hate to take it in to the shop for such a simple task.
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