D18 - Use Front Output on Rear to Lose Brake Drum?

If you just lose the drum and reuse the flanges then drive shaft length doesn't change. If you put a front style yoke on in place of the drive flange then your drive shaft will need to be about 1" longer. I did this years ago and I remember having a problem when I tighted down the front style yoke. Seems like when it tightened down the dust shield would hit the housing. May have been just the yoke I was using but I know I had a problem. I ended up just using the flange setup and doing away with the parking brake. I did this because on a run the guts self destructed and locked up the brake. Had to disassemble on the trail.
Down the road it'll get a disc parking brake. Researching an inexpensive way of doing this in my spare time. . Nickmil.

 

i have a d18 without the drum on it. This seems to be the way that it was run. It seems like the front yoke was attached to the back, and the dust shield was placed on there, but I am not the expert hence the question about the size of those nuts that hold on the front and rear yokes...


thanks
Rio

 

Just had mine off this past weekend and can't remember. I do know that I have an 1 1/8" socket in my 1/2" drive snap on set, which is in bewtween the 1 and 1 1/4 of course. Think that is what it was.

 

Some 18's came with park brakes on them and some didn't. The ones that didn't used a different rear output housing that the dust shield would clear. Seems like the one for the park brake the dust shield wouldn't clear. Nickmil.

 

so If I'm trying to use a d18 without a parking brake and I put the parking brake assembly from a d18 that came with one, will the rear output housing fit?

If the drum can be swapped to the case without the drum, I might have one if someone needs a rear output housing that already has the dust shield....

If the drum wont swap then I'm screwed.....and I'll need to figure out some other way to put a e brake on the jeep....

damn I'll have to look at that later and see if it will work..

I assumed it would, but I should have checked...alright later gotta run to school..

Rio

 

I am going to throw out the nasty I word, international. I swapped in the t-90 and dana 18 from an early scout and had no problem with driveshaft length. if you have the t-case apart it may be worth looking for a scout to steal the output cover/speedo drive to put on so you can use a dust shield.

 

Photo please of what we are refering to when we say dust shield?

 

The rear output housings are interchangeable on an 18. In other words you can put one without a park brake on an 18 that has a park brake and vice verse to run either way. The housing with the park brake is a larger casting with a flat area machined in it for the backing plate to seat against. The other one does not have this and is a lighter casting.You can use regular yoke on one for a park brake but as I recall you have to remove the dust shield. It's just pressed on.

Greg, the dust shield is the sheet metal part that is pressed onto the yoke around the seal area. It keeps junk from getting up into the seal area and damaging the seal. I'll try and get some pics this weekend. Nickmil.

 

Gotcha.
My flange style yoke used with the e brake assembly has a dust shield on it. Some don't?

 

IIRC the length of the splined area is longer on the flanged style than the yoke style. That allows the dust shield to clear. I think I have both types at home and will look this weekend. Nickmil.

 

Ok, From what I have at home this is what I found.
The drum parking brake rear housing is longer by approx. 1/4" which fits in with the clearance issue I was remembering. I remembered that the dust shield of the front style yoke would hit the drum brake housing. Not by much, but enough to lock up the output shaft.
The front yoke has a large dust shield that covers the outside of the housing when installed. The drum brake yoke that I have sitting at home, albeit installed on the transfer case, has a small dust shield that fits inside the seal area of the housing and that's why it doesn't hit the housing like the front yoke would. I didn't want to pull the flange off the sealed up and rebuilt transfer case I have sitting at home, so next time I go up to R&P (Wednesday Night) I'll look at the depth of both the yoke and the flange as they have them sitting on the shelf. Nickmil.