Author Topic: Rotating knuckles for better d-shaft angle (Read 14056 times)

Pat · « **Reply #30 on:** Dec 05, 2009, 07:04:58 PM »

....... he did his homework in the longrun to have himself a axle set up for his rig.. Show us How it turns out and again good Job..

Again this is a common mod, .......... Just takes a little bit of know how and work as you know now.

swapped89 · « **Reply #31 on:** Dec 05, 2009, 07:15:04 PM »

Quote from: 86toyota on Dec 04, 2009, 03:31:28 PM

not rear axle...front axle guys.

same idea

86toyota · « **Reply #32 on:** Dec 05, 2009, 07:18:25 PM »

true...just not the same angles. and dont have to worry about caster as much in the rear due to no steering parts

Quote from: swapped89 on Dec 05, 2009, 07:15:04 PM

same idea

4XFlyin · « **Reply #33 on:** Dec 05, 2009, 11:12:13 PM »

If you have the need, than do it. Sounds like you know what to watch out for. Measure twice, weld once is my

I did it and have a write up on it in my build up thread.

TacoRunner · « **Reply #34 on:** Dec 06, 2009, 12:11:24 AM »

swapped89

If you do go Dual Cases and HP or just DC, Dont weld on your axle a third time in the same place. Those welds could have some bad effects on the metal. Get your self another axle. Better safe than sorry.

ninja turtle · « **Reply #35 on:** Dec 06, 2009, 08:38:21 AM »

ive seen it done on a lot of rigs around here (tahoe), ima say its pretty common.

4RunnerChevy · « **Reply #36 on:** Dec 06, 2009, 09:32:31 AM »

Common mod. my magic number was 11*

swapped89 · « **Reply #37 on:** Dec 06, 2009, 02:22:00 PM »

Quote from: TacoRunner on Dec 06, 2009, 12:11:24 AM

swapped89

If you do go Dual Cases and HP or just DC, Dont weld on your axle a third time in the same place. Those welds could have some bad effects on the metal. Get your self another axle. Better safe than sorry.

? i have never welded anything to my axle except diff armor and a truss. Thanks for the heads up though, I know welding on these axles is not the best for them and can weekin them considerably.

When i welded my rear perches on that was one weld and when i shimmed the rear axle the shims got welded to the perches so i think i'll be fine.

86toyota · « **Reply #38 on:** Dec 06, 2009, 02:46:56 PM »

he was talkin to me

swapped89 · « **Reply #39 on:** Dec 07, 2009, 12:36:20 PM »

86toyota · « **Reply #40 on:** Dec 09, 2009, 08:05:41 AM »

No major problems yet. Got everything welded back up just fine with minimal warping!! I got the axle back together in my house last night since it was -17*F when i got home. Got it halfway hung under my truck, but ran into a small problem....u-bolts dont want to line up and i knew this would happen. So im gonna have to bend them about a 1/4 inch and everthing will be good. Driveshaft angle is perfect instead of putting it at 15* i put it at 13* so from the looks of it ill still have a good angle for when i do dual cases.

freds40 · « **Reply #41 on:** Dec 09, 2009, 10:29:13 AM »

Good to hear it's going well. I've done many cut and turns and it just makes everything line up so much better. I never pay attention to how much I've rotated. I just set the angle where it needs to be and set the knuckles where they should be and weld it up.

86toyota · « **Reply #42 on:** Dec 12, 2009, 11:00:34 PM »

Yeah I hear ya. I had to do mine at school while my truck was at home so it was easier taking all the measurments. It smoothed things up alot better and made my u-joints happy. Now i just gotta swap in my spare t-case that doesnt have the bad front out put shaft bearing. Lots of play makes for some crappy vibration as well =(

Quote from: freds40 on Dec 09, 2009, 10:29:13 AM

Good to hear it's going well. I've done many cut and turns and it just makes everything line up so much better. I never pay attention to how much I've rotated. I just set the angle where it needs to be and set the knuckles where they should be and weld it up.

Pat · « **Reply #43 on:** Dec 13, 2009, 08:14:19 AM »

On Extreme this weekend Ian cut and turned the knuckles on his toyota Project.. Funny thing was I swear I heard him say how he was doing it to get a better pinion angle all while trying to keep his "CAMBER"

correct.. Man they really need to edit before airing.... He should have said castor

pumkin toy · « **Reply #44 on:** Dec 13, 2009, 08:49:51 AM »

Quote from: Pat on Dec 13, 2009, 08:14:19 AM

On Extreme this weekend Ian cut and turned the knuckles on his toyota Project.. Funny thing was I swear I heard him say how he was doing it to get a better pinion angle all while trying to keep his "CAMBER" correct.. Man they really need to edit before airing.... He should have said castor

yeah they played that episode like a year ago. i was pissed because they never finished building the buggy, then they just started playing re-runs for the following year! maybe they will finally finish it this time.

wakkjobb · « **Reply #45 on:** Dec 14, 2009, 11:53:38 PM »

Wow... I wish I found this before I did my waggy spring swap. I took the old Toy springs and cut the bottom leaf in half to make a shim for my front shaft. Now I feel like a tool... $I\'m Down$

Why didn't I think of this before? It seems really obvious now!

>>Dan

fj-rankenstein · « **Reply #46 on:** Dec 15, 2009, 12:19:23 AM »

Quote from: freds40 on Dec 09, 2009, 10:29:13 AM

I never pay attention to how much I've rotated. I just set the angle where it needs to be and set the knuckles where they should be and weld it up.

i would completely agree with this point. i have done or helped with about half a dozen cut and turns myself... to have a set angle of where you think things should be is silly. i cringe every time i see a company selling a cut and turned axle with (for example) 12 degrees of upturned pinion angle and your knuckles turned back to -5 degrees caster... every truck is different and every angle will be different accordingly...

personally i like to hang the axle with the ball ends cut and kind of set up my axle on the truck itself. i will set the pinion angle facing the pinion pretty much directly at the t-case output with the vehicle weight on the springs, tack my spring perches in place solidifying my pinion angle and then turn my knuckles on the truck... you will end up with a much more acurate setting doing it this way...
as well, i set my caster with -5 degree caster for 33" and up tires and i have set up a diff with as much as -8 degrees of caster on a truck with 39 inch tires... stock caster angle is generally -1 degree on our toyotas... you ideally want more negative caster on a truck with bigger tires to help "self center" your wheels when you are driving.. to much though and your steering wheel will feel heavy. too little and there will be no "self steering" or "return to center" action happeing while driving...
too much + caster and your steering wheel will be very quick and darty feeling and the moment you let go of the wheel the steering wheel will either shoot right or left with no tendency to want to steer straight...

gray · « **Reply #47 on:** Dec 15, 2009, 05:14:35 PM »

I also did this mod and I run HP and duel cases,and love it one of the best mods I have done!!

86toyota · « **Reply #48 on:** Dec 15, 2009, 06:00:38 PM »

As i said...I much woulda rather woulda done the rotate with my truck present but i was doing it at school where theres no room for my truck for more than one day. and I dont get to work all day on it. We have a few hours of class time each day. Unforturnatly i had to work with what i had but everything tunred out great and my measurments and angles were spot on for what my applicatoin needed.

Early · « **Reply #49 on:** Dec 15, 2009, 07:44:45 PM »

Very interesting read, are their any issues with pinion bearing oiling? What about driveshaft angles, just a different joint in the shaft to compensate for the different diff flange / case flange angles?

axled89 · « **Reply #50 on:** Dec 15, 2009, 08:32:18 PM »

let's see the finished product.

86toyota · « **Reply #51 on:** Dec 15, 2009, 10:22:03 PM »

Quote from: Early on Dec 15, 2009, 07:44:45 PM

Very interesting read, are their any issues with pinion bearing oiling? What about driveshaft angles, just a different joint in the shaft to compensate for the different diff flange / case flange angles?

no problem oiling. the diff isnt tilted as far forward as many of you are imagining. and no i didnt get different joints. i already had a high angle long spline shaft on there with. and as far as pictures for some reason i cant download the pics from my phone. why i try all it says is to large...im assuming pixel size. cuz even when i down sized them and tried re downloading here it said to large.

86toyota · « **Reply #52 on:** Dec 15, 2009, 10:23:01 PM »

Quote from: axled89 on Dec 15, 2009, 08:32:18 PM

let's see the finished product.

wouldnt let me download

axled89 · « **Reply #53 on:** Dec 15, 2009, 10:43:08 PM »

Early · « **Reply #54 on:** Dec 16, 2009, 05:29:39 PM »

Quote from: 86toyota on Dec 15, 2009, 10:23:01 PM

wouldnt let me download

if you want I'll photobucket em mearly@pdx.edu

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