THe NAC Lots-O-BFG KO2 Thread

Re: THe NAC Lots-O-Post Thread

MoparManiac said:
Interesting, but I'd still rather build the shafts myself.



:laugh: Yeah I love getting threads like that going. Gives me some entertainment during the day.

Side note, Chris/Bill what do you think of my plan for a rear driveshaft:

Take 2 XJ front driveshafts, cut the slip off one and the double cardan off the other, and slug them together with 1.75 x .120 wall to the right length.

Will a 2" driveshaft hold up in the back? I'm assuming mine will be a few inches longer than Bills due to the shorter drivetrain.
Click to expand...
I wouldn't do that... I'd probably sleeve DOM or poop pipe over the outside of the existing driveshafts rather than slugging the inside. The stock MJ driveshaft is goofy huge, remember? I think it's like 4 inches in diameter.
 
Re: THe NAC Lots-O-Post Thread

he still has a shitty departure angle. what a silly goose. but yeah, I've wanted to do that for a while also. it does look really cool
 
Re: THe NAC Lots-O-Post Thread

MoparManiac said:
:laugh: Yeah I love getting threads like that going. Gives me some entertainment during the day.

Side note, Chris/Bill what do you think of my plan for a rear driveshaft:

Take 2 XJ front driveshafts, cut the slip off one and the double cardan off the other, and slug them together with 1.75 x .120 wall to the right length.

Will a 2" driveshaft hold up in the back? I'm assuming mine will be a few inches longer than Bills due to the shorter drivetrain.
Click to expand...

To this day I still wonder how I'm like the only person on the planet to nuke 760 joints reliably on 33s. :dunce:

Why do you need two driveshafts to do that?

All the shafts I've ever made are done that way...except I used 1.75" x .25 wall in the middle. Just used the last few inches of OEM tube on both ends.

Wait - nevermind, I get it. 2" x .120 wall is probably not a good choice, especially for something that long. I'm just not a fan of the typical thin-wall tube they use for driveshafts. One dent and you're XXXXed.

Any idea how long it's gotta be? I'd check out this place:

http://www.speedymetals.com

I've used them before with great results. You can buy exactly the length you need of any size tube, and their selection is amazing. Pricing's really not bad too...especially compared to some of the numbers I've seen in this thread. :D I'd consider getting a length of either 3/16" or 1/4" wall 1.75" DOM to build the main part of the shaft out of, and just use the stock tube as a sleeve to align the yokes like I've done.

Or say XXXX it, for what you're doing...run a square tube shaft. :)
 
Re: THe NAC Lots-O-Post Thread

that is a well written thread. too bad it's about an automatic.
 
Re: THe NAC Lots-O-Post Thread

vetteboy said:
To this day I still wonder how I'm like the only person on the planet to nuke 760 joints reliably on 33s. :dunce:

Why do you need two driveshafts to do that?

All the shafts I've ever made are done that way...except I used 1.75" x .25 wall in the middle. Just used the last few inches of OEM tube on both ends.

Wait - nevermind, I get it. 2" x .120 wall is probably not a good choice, especially for something that long. I'm just not a fan of the typical thin-wall tube they use for driveshafts. One dent and you're XXXXed.

Any idea how long it's gotta be? I'd check out this place:

http://www.speedymetals.com

I've used them before with great results. You can buy exactly the length you need of any size tube, and their selection is amazing. Pricing's really not bad too...especially compared to some of the numbers I've seen in this thread. :D I'd consider getting a length of either 3/16" or 1/4" wall 1.75" DOM to build the main part of the shaft out of, and just use the stock tube as a sleeve to align the yokes like I've done.

Or say XXXX it, for what you're doing...run a square tube shaft. :)
Click to expand...

I'm guessing my rear driveshaft is going to be somewhere around 47-50" long. I'll have a better idea of how long in the coming weeks.

I might do that route with the 1.75 x .250" wall. Do you think it will be strong enough to survive the higher RPMs...?

Meh, I don't want to run a squaretube shaft. No reason in particular :D.
 
Re: THe NAC Lots-O-Post Thread

RCman said:
It might. I will tell you this...
When I called the three driveshaft shops (High Angle, Tom Wood's, and a place in NH) and told them my length and that I wanted a 2" diameter shaft, none of them wanted to build it because of the expected RPM and length. They all wanted at least 2.5", due to the so i ended up routing the exhaust a little different so I could get the larger driver shaft in there.
Edit: My shaft specs: 43 3/4" compressed, 43 7/8" extended
Click to expand...

This is why I gave up on driveline shops. My front shaft can absolutely be no bigger than 1.75" OD about 5" away from the t-case yoke, and the best anyone could give me was one of those skinny solid-round CJ-style shafts. No thanks.

If it's gonna see thousands of road miles at highway RPM's I can see doing the large-OD thin-wall tube, but for what we're doing, that stuff scares me. In an application where the driveshaft will likely be doing double-duty as a rock slider I'll take my thick-wall tube anyday.

FWIW I've had no issues with 60+ MPH on them, either...

If you want to start from scratch and design something to perfectly fit your application, these guys are great to work with too:

http://www.drive-lines.com/

All the slips/yokes/etc you could ever want. I built my front shaft with parts from that place.
 
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Re: THe NAC Lots-O-Post Thread

Mine too. Drinking a coffee and throwing the bird at everyone with a veedub!
 
Re: THe NAC Lots-O-Post Thread

MoparManiac said:
I'm guessing my rear driveshaft is going to be somewhere around 47-50" long. I'll have a better idea of how long in the coming weeks.

I might do that route with the 1.75 x .250" wall. Do you think it will be strong enough to survive the higher RPMs...?

Meh, I don't want to run a squaretube shaft. No reason in particular :D.
Click to expand...

How fast do you think you're gonna go in this thing? Realistically? :roll:

I built my current rear shaft about 2.5 years ago, and changed the u-joints in the double-cardan once after I had a cap crack in half. I had to shorten it a little when I did the 32-spline upgrade, but otherwise that's it.
 
Re: THe NAC Lots-O-Post Thread

Dundy said:
Mine too. Drinking a coffee and throwing the bird at everyone with a veedub!
Click to expand...
At least it's manual.
 
Re: THe NAC Lots-O-Post Thread

vetteboy said:
This is why I gave up on driveline shops. My front shaft can absolutely be no bigger than 1.75" OD about 5" away from the t-case yoke, and the best anyone could give me was one of those skinny solid-round CJ-style shafts. No thanks.

If it's gonna see thousands of road miles at highway RPM's I can see doing the large-OD thin-wall tube, but for what we're doing, that stuff scares me. In an application where the driveshaft will likely be doing double-duty as a rock slider I'll take my thick-wall tube anyway.

FWIW I've had no issues with 60+ MPH on them, either...

If you want to start from scratch and design something to perfectly fit your application, these guys are great to work with too:

http://www.drive-lines.com/

All the slips/yokes/etc you could ever want. I built my front shaft with parts from that place.
Click to expand...
You do have a point, but seeing as I didn't have any of the materials it would have cost me very close to the same to just have it built and be done (plus it worked out good in the end).
If I'd have had the tube or even just the $90 slip yoke I'd have been much more inclined to build one. That being said, I'd only be comfortable building one for my XJ (I did the front driveshaft). No way I'd build one for my DMax (or at least get it balanced and trued before running it).
MoparManiac said:
Chris you just gave me some bad ideas.

http://www.drive-lines.com/4x4/bamf.html
Click to expand...
"Distributed to qualified shops. Available to individuals only as part of a complete driveline."

asp said:
At least it's manual.
Click to expand...
Dude, give it a rest already. :)
 
Re: THe NAC Lots-O-Post Thread

that's like saying a piece of shit doesn't smell that bad...
 
Re: THe NAC Lots-O-Post Thread

RCman said:
"Distributed to qualified shops. Available to individuals only as part of a complete driveline."
Click to expand...

Yeah I just read that, lame.

I might price out the t-case yoke and driveshaft. I just found out what I'm getting back for returns at the end of the month.
 
Re: THe NAC Lots-O-Post Thread

XJLI said:
my automatic jeep got me to work today.
Click to expand...

Dundy said:
Mine too. Drinking a coffee and throwing the bird at everyone with a veedub!
Click to expand...
A dub four FTW!
XJLI said:
one of our server techs bought bagels.. wow. best bagel i've had in a logn time. nomnomnom
Click to expand...

the bakers dozen near my house has delicious everything bagel toasted with cream cheese
 
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