904 tranny problem - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 06-20-2005, 03:32 PM Thread Starter
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904 tranny problem

I just installed a 904 with a Lokar shifter. The problem it is having is it locks into park and neutral but when you shift into reverse or drive it is hard to tell what gear you are in as it moves freely between them.

I was told to replace the detent spring as it feels weak. What does it take to do this on a 904?
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post #2 of (permalink) Old 06-20-2005, 04:02 PM
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Re: 904 tranny problem

Support the Transfer case.
Remove the shift lever
Remove the kick down lever
Remove the ATF pan
Remove the Filter ( three screws )



Remove the Valve Body (10 bolts)




Remove the shifting shaft (3 bolts, be careful)



Replace the detent spring.

I doubt this is the problem....put a pair of vice grips on the shift shaft before you pull it out and see if you can move the shift shaft through it's detent positions.

Sometimes the shift shaft and the detent plate become loose, and the plate must be peened back onto the shaft.

See, clear as mud!
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post #3 of (permalink) Old 06-20-2005, 04:54 PM Thread Starter
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Re: 904 tranny problem

Cool, thanks.

If you don't think it is the detent spring, what do you think it could be? I was told it could be the shifter linkage, but that does not make sense to me.

Mike
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post #4 of (permalink) Old 06-20-2005, 04:57 PM
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Re: 904 tranny problem

Did the transmission do this before the aftermarket shift assembly was installed?
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post #5 of (permalink) Old 06-20-2005, 05:18 PM Thread Starter
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Re: 904 tranny problem

[ QUOTE ]
Did the transmission do this before the aftermarket shift assembly was installed?

[/ QUOTE ]

I don't know.
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post #6 of (permalink) Old 06-20-2005, 05:23 PM
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Re: 904 tranny problem

Then I'll repeat, put a pair of channel lock pliers on the shifting shaft (without the Lokar attached) and turn the shift shaft through the dentents. You'll soon see if it's a positive detent, or not... That way you don't have to mess with opening the transmission.

If it's not a positive detent, then my guess is the press fit denent plate has loosened from the shift shaft assembly. A simple peen of the plate back to the shaft will restore function. There is no other lock on the transmission.
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post #7 of (permalink) Old 06-20-2005, 06:52 PM Thread Starter
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Re: 904 tranny problem

[ QUOTE ]
Then I'll repeat, ....

[/ QUOTE ]

OK Leve, sometimes I am slow getting the hint. I will try this when everything cools off this evening. Weather Watcher tells me it is still 109 degrees outside and I just drove the Jeep.
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post #8 of (permalink) Old 06-21-2005, 11:44 AM
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Re: 904 tranny problem

So what did you find? I'm dyin' of curiosity! I'd bet your paycheck it's OK.
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post #9 of (permalink) Old 06-21-2005, 12:39 PM
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Re: 904 tranny problem

[ QUOTE ]
it is still 109 degrees outside

[/ QUOTE ]

Hey Mike we are expecting a cold front to move in on Thursday, the weather guy says only 104* the rest of the week, and through the week end [img]/ubbthreads/images/graemlins/grin.gif[/img]
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post #10 of (permalink) Old 06-21-2005, 07:06 PM Thread Starter
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Re: 904 tranny problem

I did not get to it last night and my daughters took it today. I now have a different problem to figure out first.

The girls called me because the Jeep would not start off I go give them a jump. First of all the battery is dead so we jump it. Next we find out the kill switch is on. We finally get it started. It is knocking like crazy. It has plenty of oil, oil pressure, etc. The only thing I can think of it was 116* out side today. The jeep sometimes pings when hot. I am afraid to drive it home. What would you do?

[ QUOTE ]
Hey Mike we are expecting a cold front to move in on Thursday, the weather guy says only 104* the rest of the week, and through the week end

[/ QUOTE ]

Better get out the sweaters!
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