clocking dana 300, any lubrication concerns? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 12-18-2002, 06:31 PM
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clocking dana 300, any lubrication concerns?

I have been reading / searching posts about clocking the transfer case and I have to wonder if there are any lubrication problems with the case mounted almost flat. Is there a reason the manufacturer mounted it the way they did? I have a T-18 / dana 300 and the idea is very appealing, but wanted to know if anyone has had any problems after performing the modification.

I guess what I am wondering is... Is this a strickly off road only mod ??? Will it work Ok driving for 5-6 hours at constant 65 MPH ?



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post #2 of (permalink) Old 12-19-2002, 02:02 AM
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Re: clocking dana 300, any lubrication concerns?

I have not had any problems with my clocked 300 and I have not heard of anyone else have any. I drive my CJ everywhere including some long trips. Its a great mod and a good time to do something about the stock rock dragging skid plate. You can gain 4" or so of ground clearance if done properly. Good luck!
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post #3 of (permalink) Old 12-19-2002, 08:39 AM
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Re: clocking dana 300, any lubrication concerns?

jps4ever, did you have to buy a clocking ring? If so, how much did it cost? I have a Dana 300 mated to a TH400 auto w/a Novak adaptor kit and I'd like to get the xfer case up and out of the way. It would also aid in getting the shifter to fit. Thanks,
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post #4 of (permalink) Old 12-19-2002, 08:43 AM
 
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Re: clocking dana 300, any lubrication concerns?

Either ...
Fill with factory specied oil volume.
Fill to cover from 1/3 to 1/2 the diameter of the rear output shaft bearing ... fill to, or just below the output's centerline.
Do not over fill by continuing to use the OEM fill plug ... you could blow the seals.

I have small hands so I use my little pinky through and down inside the fill plug hole as a dip stick. [img]images/graemlins/smirk.gif[/img] ... Don't get yers stuck in there! [img]images/graemlins/tongue.gif[/img]
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post #5 of (permalink) Old 12-19-2002, 09:33 AM
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Re: clocking dana 300, any lubrication concerns?

i am also looking into clocking the dana 300 on my cj7 and have found a couple different clocking rings for maybe $160 but also found articles on rotating it one hole and remounting it without any sort of adapter. which have you guys used or would reccommend?

also, does anyone have any input on skidplate designs for after its done? i was thinking something tubular with sheetmetal bolted for easy removal...
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post #6 of (permalink) Old 12-19-2002, 11:31 AM
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Re: clocking dana 300, any lubrication concerns?

With the D300 normally mounted, the main input/output bearings are lubricated through splashing from the turning gears. Clocking the case actually helps the lubrication.

In fact for flat towing (with the tcase in neutral) it gives the output bearing a good chance of getting adequate lubrication since no gears turn, but just the shift collar and shaft.

My d300 is pretty flat and I have driven over 10,000 miles on it without a problem. Some of those miles were full-day drives at freeway speeds.
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post #7 of (permalink) Old 12-19-2002, 12:39 PM
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Re: clocking dana 300, any lubrication concerns?

I wonder why they mounted it hanging down like that then? Do you have to have a body lift to do this mod? I am definatly going to try to get it done this winter with my rear axle upgrade. [img]images/graemlins/cool.gif[/img]
post #8 of (permalink) Old 12-19-2002, 05:48 PM
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Re: clocking dana 300, any lubrication concerns?

</font><blockquote><font class="small">In reply to:</font><hr />
Do you have to have a body lift to do this mod?

[/ QUOTE ]1. No, depending on how high you clock the transfer case.
2. Remember you're moving the passenger side of that transfer case UP!
3. It's got to have room.
4. So if you DON'T do a body lift you may run out of room.
5. Then you have to modify the transmission hump.
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post #9 of (permalink) Old 12-20-2002, 12:00 PM
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Re: clocking dana 300, any lubrication concerns?

I did not use a clocking ring. I adapted my 300 to a Ford T-18 using AA's kit. (saved $100 buying it from "No Excuses") I just redrilled the adapter and did not use one of the studs on the 300. I see no reason why you could not redrill the 300 and put the studs where ever you need them.
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post #10 of (permalink) Old 12-20-2002, 12:08 PM
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Re: clocking dana 300, any lubrication concerns?

I built my own twin stick and used a 1" body lift. No mods to the hump other than a 1" hole in the side to be able to get a socket in there. If you look close you can see the rubber plug covering the hole in the pic.
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