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1994 Dodge B350 Custom Camper Build - Transmission Reverse Slip

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Old Oct 23, 2024 | 07:16 PM
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Default 1994 Dodge B350 Custom Camper Build - Transmission Reverse Slip

Hi guys,

It has been a while and a lot has happened since I posted here when I first bought my van several years ago. The build is mostly complete with a few detail details left to finish eventually.

New 360 engine, new paint job, complete interior filled with captain seats pull out bed with ottoman and storage underneath, new propane and stove 20 gallon water tank with new pump and sink which also includes a switch for an outdoor shower. New tires, new suspension entirely new front end, I installed new leaf springs last year, which lifted it a couple inches, new tires, new tow hitch, all new electrical and I completely rebuilt the AC system last year.

One issue has been the transmission pan leaking since I bought it. I have replaced the pan and gasket and filter three times and it continued to have a slight leak every time. This year I finally decided to try something a little more Janky and threw some sea clamps on the lip of the pan and the leak stopped. Unfortunately, at the same time my reverse started to slip occasionally, especially when it’s cold. It will only slip normally one time. For a moment and then go back in the gear. The transmission has always slammed into gear from park to drive, I say slammed, but really it’s a a mile jerk. I haven’t really dove into transmissions yet and I’m pretty nervous about the whole thing.

A couple of the sensors that are further back from the transmission have also seeped a little bit and I’ve gotten in there and tried to seal them up and replace gaskets, but never fully had the time to attack that problem.

I always use ATF 4+. I never use overdrive, I don’t even know if it’s fully functional after the new engine was installed. Kind of scared of it. I believe it’s a 46 RE in there but that’s just for memory.

I would hate to lose our transmission after all the work that I’ve put into the van. I believe it’s not the and was installed a few years before I bought it. I have the invoice in the paperwork somewhere.

If anyone has any advice on where to start I’d really appreciate it.

Just for fun here’s a video of the van in its current state:

 

Last edited by ian94b250; Oct 23, 2024 at 08:19 PM.
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Old Oct 24, 2024 | 07:45 AM
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Have you done a band adjustment?? You trans is pretty much purely hydraulic.... so, not much else you can do.
 
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Old Oct 25, 2024 | 08:25 PM
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Originally Posted by HeyYou
Have you done a band adjustment?? You trans is pretty much purely hydraulic.... so, not much else you can do.
I haven’t, but will do it. To be honest, I’m a little bit intimidated by anything transmission.

I found this post which has some great guidance: https://dodgeforum.com/forum/2nd-gen...ment-46re.html

Should I follow the manual exactly? Any other advice on not screwing things up?

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. 73).
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 an 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 2-7/8
turns.
(5) Hold adjuster screw in position and tighten
locknut to 41 N·m (30 ft. lbs.) torque.
(6) Lower vehicle.



so i loosen the nut, i tighten the torque head to 72lbs then back the nut off again then tighten the the torque head again another 30lbs? jus wanna make sure i do this RIGHT haha

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.
Be sure adjusting screw turns freely in lever.
(4) Tighten adjusting screw to 8 N·m (72 in. lbs.)
torque (Fig. 74).
(5) Back off adjusting screw 2 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
Mopart ATF +4, Type 9602 fluid.

so same here losen the nut tighten the torque head to 72lbs, then back the nut off hold it and tighten the torque head to 25lbs
I have a little bit of time before the rain comes to do some longer projects. I’m located in the Pacific Northwest and I do not have a garage unfortunately.
 
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Old Oct 26, 2024 | 10:11 AM
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That *should* be adequate to the task. There is a thread in the 2nd Gen Ram section, "MonteC's Transmission Corner", that has slightly different adjustment specs.... (I don't think he backs them off as far....) It's a long thread, but, an interesting read.
 
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Old Nov 3, 2024 | 01:51 AM
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While doing the rear band adjustment I found the overdrive wave clip (well half of it) in the pan.

Does this clip impact reverse? Would it cause reverse to slip possibly?

it’s funny because when I bought this van, I almost immediately spun the bearings and had a new engine installed. After the new engine, overdrive stopped working. Not sure if it’s related.


Found some of the other threads about this issue and they’re really helpful. I need to do more research, but I wondering from experience what all should consider rebuilding? Would it be prudent to pull the transmission and OD and rebuilt everything? Or should I just replace the clip?

I’ve been wanting to learn to work on transmissions, so I might attempt the repair myself. Noting the 700 lbs. of force, I have some hesitation, but I can’t afford a mechanic.

Gonna check my service manual and read through the thread you mentioned. Appreciate any tips on this stuff. Thanks!


 
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Old Nov 3, 2024 | 09:07 AM
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If the van is in good shape, and you wanna keep it for a while, rebuild the whole trans, and call it a day. Then you should have a good reliable vehicle for quite some time.
 
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