Toy swap Q's

[lforgue8]

Finally driving my toy swap!

set up of gears was by me but im sure the patterns were good......

today on the highway let off of throttle i have a rumble......back on the throttle goes away....only been 120 miles with new gears and bearings in rear and new bearings in front

the truck also has sat for about 6-8 months before driving this weekend too

im going to try and drive it on the lift at work tomorrow but thought id post up and see if there were anybody else had this happen

im hoping its not my new gears!:ack:

 

[D90DC]

U Joints? Did you drastically change the pinion angle?

 

[lforgue8]

U Joints? Did you drastically change the pinion angle?

pinion angles look good to me.......pinion points straight to the shafts front and rear....u joints are i think but i WILL check all of that tomorrow

 

[lunchbox]

I had the same problem. I had a more difficult time lining up the joint with the Toy 3rd. Not sure why. But it seemed to show a worn u-joint more than the Rover 3rd. I also have my rear pointed up with a DC shaft. Rebuilt the joints. Gone.

 

[lforgue8]

I had the same problem. I had a more difficult time lining up the joint with the Toy 3rd. Not sure why. But it seemed to show a worn u-joint more than the Rover 3rd. I also have my rear pointed up with a DC shaft. Rebuilt the joints. Gone.

Well on the lift the noise is from the rear diff.......

does the lock right make this kind of noise when on and off the gas? its new to me so im not sure

everything is new back there and i have no whining just this loud rumble.....i hear the clicking in turns but the rumbel doesnt sound right to me


help please i have the romp coming up! :banghead:

 

[ukoffroad]

Sounds like bearings in the rear of the tcase or the ujoints.

 

[lforgue8]

Sounds like bearings in the rear of the tcase or the ujoints.

Thats what i was hoping too but with my stethiscope the noise is from the rear diff pinion area

 

[KyleT]

crush sleeve or sollid spacer?

 

[Steve Rupp]

Are you using a DC shaft in the rear?

 

[lforgue8]

Are you using a DC shaft in the rear?

solid spacer and non dc shaft......im thinking of pulling the diff tomorrow and check it.....

 

[lunchbox]

You said your pinion points straight up both front and rear. You must run a DC shaft if so. I have ARBs. So I can't comment on the Lockright. If your pointed up in the rear and running a single joint shaft, that's one problem.

 

[lforgue8]

You said your pinion points straight up both front and rear. You must run a DC shaft if so. I have ARBs. So I can't comment on the Lockright. If your pointed up in the rear and running a single joint shaft, that's one problem.

the shafts at the pinion front and rear are at the same angle as the diffs are
i saw that today that it will become a problem in the rear even at ride height with no droop but i dont think thats my problem right now.....i need to see if the pinion bearings are ok......my feeling is that one of them may have gotten some rust on them and thats my problem but thats just speculation


anybody know rough idea how much a TW dc rear shaft runs?

 

[lunchbox]

$350ish

 

[KevinNY]

Don't ignore good advice, your rear drive angles are all wrong, that's your rumble. No sense tearing into your 3rd before correcting the driveline issue.

 

[macgyverizer]

x2 ha ha ha

 

[lforgue8]

im not ignoring good advise.........i know the drivline angles arent ideal but that is not the noise i heard.......the noise was only from the pinion of the rear diff and not on both the tcase and diff ends..........the rear diff is apart and the pinion bearings both show signs of pitting and the races both have matte finish to them and not nice and polished


im not being stubborn but its hard to describe the noise over the internet

new bearings are in the mail and will be installed by the end of the week and i dont have cash for a new dc rear driveshaft right now anyway so that will be pushed to the top of the list

 

[lforgue8]

So the new pinion bearings were set up slightly looser and the gear pattern is still good the noise is still there just a different pitch if that makes sense........

im wondering if the diff case is tweaked from a under neather hit or something..........

or i would like to hear how a driveshaft could make a rumble like a wheel bearing transfer into the pinion area of the diff, as that now will be my next purchase ( no disrespect to you kevin, i actually want to learn! )

 

[emmodg]

Did you look into diff angle or not? A tweaked angle will cause all sorts of shit!

 

[D Chapman]

If you have a"roar" its the drive shaft.

If you have a "whine" it's the diff.

Is your drive-shaft out of phase?

I doubt it's a u-joint problem. Either your angles are out of whack or the drive-shaft is out of balance, or both.

 

[lforgue8]

If you have a"roar" its the drive shaft.

If you have a "whine" it's the diff.

Is your drive-shaft out of phase?

I doubt it's a u-joint problem. Either your angles are out of whack or the drive-shaft is out of balance, or both.

See this is where names get all F**ked around........Dan so the roar is like a wheel bearing "rumble"? if so then maybe just a drive shaft? new u joints in the shaft and not out of phase but maybe slightly out of balance but not to bad, but when the noise occurs no vibrations felt.

i have the rear pinion pointing at the driveshaft almost dead on and the tcase end is pretty extreme.....but all the noise is from the pinion on the lift..and the bearings i took out looked worn