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post #1 of (permalink) Old 07-23-2002, 04:48 PM Thread Starter
 
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Geting Front Driveshaft To Clear TF727

I know this is a dilemma that most who are running this tranny have faced.

Here is a pic

If you look at the pic you can see that when the drivehshaft travels up it will contact the tranny pan. This is the original shaft and is 3/8" smaller in diameter than the shaft I am having made. I have clocked the D300 with a Go2guy ring to try and get as flat a skidplate as possible.

Options so far:

1: cut the pan back; anyone done this? How far can I go? I would need to cut it back completely past the bolt to clear the shaft.

2: 2 piece driveshaft with a carrier bearing; interesting, sounds expensive though

3: Give up on the entire project, part it out and take the wife to Hawaii for a few weeks. (she is standing behind me and believes that this is the preferred solution. [img]images/icons/smile.gif[/img]

4: Remove the clocking ring and position the D300 hanging down like stock. I'll do option 3 before I go back to this.
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post #2 of (permalink) Old 07-23-2002, 04:57 PM
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Re: Geting Front Driveshaft To Clear TF727

go for 3.
i need some parts.
post #3 of (permalink) Old 07-23-2002, 05:12 PM
 
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Re: Geting Front Driveshaft To Clear TF727

option # 5. Pull front axle install YJ axle then replace D300 with an NP 231 or 241. This moves it to the other side.

seriously I have heard of clocking the motor a little to the drives side to raise the tranny for this application but I really don't see how this will help much.
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post #4 of (permalink) Old 07-23-2002, 05:18 PM
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Re: Geting Front Driveshaft To Clear TF727

some 4" lift springs would help.. you DID want to run 44's right???
take the clocking ring out... the only way...
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post #5 of (permalink) Old 07-23-2002, 06:35 PM
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Re: Geting Front Driveshaft To Clear TF727

you could run one of the old right hand drop NP cases, they might be longer and give you more room to work with, but then you might have to deal with their increased lenght.

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post #6 of (permalink) Old 07-23-2002, 07:47 PM
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Re: Geting Front Driveshaft To Clear TF727

Exactly why I haven't done this swap in the 2+ years I've been considering it. I've heard of people modifying the pan a bit, but never personally seen one. I would think it could be done with a little patience.
post #7 of (permalink) Old 07-23-2002, 08:02 PM
 
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Re: Geting Front Driveshaft To Clear TF727

Will I have this problem if I use a TF999 in my 83CJ7?
I was thinking of useing the TF727, but I can see that is a problem.
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post #8 of (permalink) Old 07-23-2002, 08:37 PM
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Re: Geting Front Driveshaft To Clear TF727

The TF999's came stock in CJ's (mine has one) and they don't have the extra "bump" that the 727 has. The 999 is not a problem at all.

If you run a YJ t-case and front axle, wouldn't you have exhaust issues? Just a thought.

I'm thinking, take the clocking ring out as well. Ground clearance doesen't do you any good if you can't travel the front axle without busting up the front shaft.
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post #9 of (permalink) Old 07-23-2002, 09:49 PM
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Re: Geting Front Driveshaft To Clear TF727

I'd be tempted to:
a. Remove the pan,
b. Modify the bump,
c. Flatten it out,
d. Braze it up,
e. Re-install it,
f. See if it'd work without hitting.
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post #10 of (permalink) Old 07-24-2002, 08:14 AM
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Re: Geting Front Driveshaft To Clear TF727

From what I understand the bump can be modified to some extent, but there is still some contact. The only sure cure is SOA from what I've found out about this swap.
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