Driveline

[louis]

Well the time has comen, and i need a new driveline.. I am just going to use square tubeing but am curious as to what type/size i need. Also, can i get some pics of how you guys weld these to the flanges.. I dont understand how to make a square pipe fit where a round one used to be.

[NorcalPR]

http://www.toyotaoffroad.com/Article..._Driveline.htm
http://www.pirate4x4.com/forum/showthread.php?t=90517
http://board.marlincrawler.com/index.php?topic=14915.0

[Wes]

Not sure how much detail in those links- just take your time though. There are guys on here that have built square drivelines that do 70 with very little vibration, and others that need to bite down on something to go over 20.

2' square and an inside mic work really nice to line up the u-joints in the square tube. Tape wrapped around the round pieces you insert in the tube is also another way to center it up nice.

OR- the right driveline place will retube what you have for less than a hundred bucks and quite frankly, it is worth it to be able to haul ass in 4wd.

[NorcalPR]

Originally Posted by Wes

Not sure how much detail in those links- just take your time though. There are guys on here that have built square drivelines that do 70 with very little vibration, and others that need to bite down on something to go over 20.

2' square and an inside mic work really nice to line up the u-joints in the square tube. Tape wrapped around the round pieces you insert in the tube is also another way to center it up nice.

OR- the right driveline place will retube what you have for less than a hundred bucks and quite frankly, it is worth it to be able to haul ass in 4wd.

The only problem is finding a place that will retube it with some thick stuff.

I have a CV driveshaft, with the 8" slip yoke, and unbalanced I can take it to 45mph. I tubed it with Sch40 piping, it's nearly .2 thick

[Wes]

Originally Posted by NorcalPR

The only problem is finding a place that will retube it with some thick stuff.

I have a CV driveshaft, with the 8" slip yoke, and unbalanced I can take it to 45mph. I tubed it with Sch40 piping, it's nearly .2 thick

I think a driveshaft book/person would counter with some numbers regarding instant center, tube DIA vs. wall thickness, etc. Jesse at High Angle doesn't put all that thick of tube back in them- and it is probably still a compromise with slightly thicker tube vs. the larger diameter of the stock (at center).

I think something like .188 DOM would be more than sufficient- I can't imagine using .250 but what the hell do I know?

[RaideRNatioN]

its been a while, but i believe my rear D-shaft is .188 DOM. The D-shaft shop that did it said that was about the max I could go without having issues with the u-joints wearing too fast.

[NorcalPR]

Originally Posted by Wes

I think a driveshaft book/person would counter with some numbers regarding instant center, tube DIA vs. wall thickness, etc. Jesse at High Angle doesn't put all that thick of tube back in them- and it is probably still a compromise with slightly thicker tube vs. the larger diameter of the stock (at center).

I think something like .188 DOM would be more than sufficient- I can't imagine using .250 but what the hell do I know?

Yeah, I'm pretty sure mine is 2.5" pipe IIRC, and that would put me at a .2 thickness, and a 2" pipe would be .154 thickness.

Regardless, when I let off the gas in 4wd, there is so much rotational mass the truck's speed stays constant. If I pop it out of 4wd, the truck will begin to slow down