WeGotMud

Projects & Parts => Garage/Tech => Topic started by: Kyle on January 14, 2011, 09:39:31 PM

Title: studder in front end
Post by: Kyle on January 14, 2011, 09:39:31 PM
i did a sas on my 92 chevy. dana 44 front. everything was just fine on it before. the last time i had used the 4x4 it ran just fine and never had any issues with it... and that was maybe 2 months ago... now all of a sudden when i put it in 4 the front end starts to chatter and studder and it gets worse the faster i go and the harder i press on the gas.... but it doesnt do it when the tcase is in 2 and the hubs are still locked in.... could it be cuz the chain in the tcase is loose??? cuz it takes a second to kick back into 2 when goin from 4.... this has a 241 drivers drop case... any ideas would be greatly appreciated! never had this happen before on any vehicle, even my dad dont know  GotMud?
Title: Re: studder in front end
Post by: MR. Horsepower on January 15, 2011, 12:14:22 AM
have you check all u joints to make shur you don't have a dry cap or some slop in one joints and make shur the yoke is tight on t case
Title: Re: studder in front end
Post by: old school truck dude on January 15, 2011, 12:41:54 AM
Quote from: MR. Horsepower on January 15, 2011, 12:14:22 AM
have you check all u joints to make shur you don't have a dry cap or some slop in one joints and make shur the yoke is tight on t case

x2
Title: Re: studder in front end
Post by: Kyle on January 15, 2011, 03:34:43 AM
Quote from: old school truck dude on January 15, 2011, 12:41:54 AM
Quote from: MR. Horsepower on January 15, 2011, 12:14:22 AM
have you check all u joints to make shur you don't have a dry cap or some slop in one joints and make shur the yoke is tight on t case

x2

but it doesnt do it when the tcase is in 2 wheel, even tho all the joints and driveshaft are still spinning
Title: Re: studder in front end
Post by: Jjay78 on January 15, 2011, 11:29:27 PM
mine acted like that for a while, ended up being a ujoint on mine man, the clip broke and the bearing cup came out just enough for there to be noise when there was torque on it but not when it was just free spinning
Title: Re: studder in front end
Post by: Kyle on January 16, 2011, 01:04:34 AM
Quote from: Jjay78 on January 15, 2011, 11:29:27 PM
mine acted like that for a while, ended up being a ujoint on mine man, the clip broke and the bearing cup came out just enough for there to be noise when there was torque on it but not when it was just free spinning

which joint? not likes 4 of em in the front end ==roll
Title: Re: studder in front end
Post by: Jjay78 on January 16, 2011, 01:45:21 AM
mine was the one at the pinion yoke
Title: Re: studder in front end
Post by: Kyle on January 16, 2011, 01:50:08 AM
Quote from: Jjay78 on January 16, 2011, 01:45:21 AM
mine was the one at the pinion yoke

i was almost thinkin that it might have gone dry on me... i put non greaseables in there for strength... and the last time i ran the 4x4 it was cold out and it was mostly playin around in the puddles. and just the other day i had the pinion joint on the rear axle go when i was driving down the road(almost like one of the caps came off of it cuz the joint wasnt broken) and one of those caps were completely dry...
Title: Re: studder in front end
Post by: MR NASTY on January 16, 2011, 02:27:17 AM
Check all your fluids front axle and t case?  Maybe the needle bearings on the inside of the spindle.
Title: Re: studder in front end
Post by: Kyle on January 16, 2011, 04:30:53 AM
Quote from: MR NASTY on January 16, 2011, 02:27:17 AM
Check all your fluids front axle and t case?  Maybe the needle bearings on the inside of the spindle.

spindle?
Title: Re: studder in front end
Post by: Kyle on January 16, 2011, 09:22:19 PM
i beleive i found out what the problem was... went out today and layed in the snow bank and started doin a shakedown on the whole front end. got to the driveshaft and notice the flange that bolts the ds to the tcase was loose.... i tuned it a lil bit and noticed that there were 2 consecutive bolts missing  ==pissed
Title: Re: studder in front end
Post by: Kyle on January 18, 2011, 06:20:58 PM
well i got 2 more bolts and tightened em all back in, topped off the diff fluid, and it wasnt even that low to begin with, and retightened the yoke girdle bolts.... still had a faint studder that seemed to go away as i used it.... but then as soon as i got back onto pavement and kicked it back into 2 wheel with the hubs locked in it didnt seem right, it wasnt as smooth as it normally was and wouldnt go away till i unlocked the hubs
Title: Re: studder in front end
Post by: Captn. J on January 18, 2011, 06:23:16 PM
maybe u have a bad u joint somewhere
Title: Re: studder in front end
Post by: Kyle on January 18, 2011, 06:47:04 PM
Quote from: Captn. J on January 18, 2011, 06:23:16 PM
maybe u have a bad u joint somewhere

ive never felt a ujoint do that before.... ive had one burn out on the back axle while i was going down the road and never felt anything like that... but it is at a fairly steep angle for any driveshaft i guess
Title: Re: studder in front end
Post by: betterbeaters on January 18, 2011, 06:50:28 PM
ring and pinion are bad? spider gears bad? bearings in the axle are bad?sounds like you need to rip the front end apart and see what it looks like or keep running till it goes boom and spend more money fixing it.....
Title: Re: studder in front end
Post by: Kyle on January 18, 2011, 06:55:16 PM
Quote from: betterbeaters on January 18, 2011, 06:50:28 PM
ring and pinion are bad? spider gears bad? bearings in the axle are bad?sounds like you need to rip the front end apart and see what it looks like or keep running till it goes boom and spend more money fixing it.....

i know when i rotate the driveshaft by hand the ring and pinion is pretty loose... but i dont understand why all of a sudden it had gone bad... cuz ive gone mud boggin, to silver lake, just rollin around in the yard all in 4 wheel and it has never done that before... and NOW all of a sudden it does
Title: Re: studder in front end
Post by: Captn. J on January 18, 2011, 07:03:25 PM
anything can GO without any warning ...    do u have cv style with flange  driveshaft up front?
Title: Re: studder in front end
Post by: MR NASTY on January 18, 2011, 07:03:52 PM
Breakage doesn't have no rhyme or reason to it.  I agree all we can do is guess where is you can pull it apart and see. Vibrating that bad should make the problem pretty obvious. Or wait and it will present itself at the most inconvenient time.
Title: Re: studder in front end
Post by: betterbeaters on January 18, 2011, 07:07:59 PM
I have broke so much and never seen it coming thats how it works I would really pull your front apart and look it over before it breaks when you have to have it!
Title: Re: studder in front end
Post by: J.C. on January 18, 2011, 07:12:36 PM
Quote from: MR NASTY on January 18, 2011, 07:03:52 PM
Breakage doesn't have no rhyme or reason to it.

off topic, but i definately must disagree with that general statement...

have you checked the balljoints? and all the tierod ends?
Title: Re: studder in front end
Post by: Kyle on January 18, 2011, 07:15:21 PM
Quote from: Captn. J on January 18, 2011, 07:03:25 PM
anything can GO without any warning ...    do u have cv style with flange  driveshaft up front?

yes

Quote from: betterbeaters on January 18, 2011, 07:07:59 PM
I have broke so much and never seen it coming thats how it works I would really pull your front apart and look it over before it breaks when you have to have it!

i guess ill be doin a complete overhual on it this spring then ==doh

Quote from: El Duderino on January 18, 2011, 07:12:36 PM
Quote from: MR NASTY on January 18, 2011, 07:03:52 PM
Breakage doesn't have no rhyme or reason to it.

off topic, but i definately must disagree with that general statement...

have you checked the balljoints? and all the tierod ends?

all ball joint and tie rods are solid. wheel bearings are tight too. i did a complete shakedown on the front and had my dad even re-check to make sure i didnt miss anything
Title: Re: studder in front end
Post by: J.C. on January 18, 2011, 07:25:47 PM
leaf spring bushing? ubolts are tight? hmm what else. pinion bearing maybe? did ya open that front diff up and look in there yet?
Title: Re: studder in front end
Post by: MR NASTY on January 18, 2011, 07:29:57 PM
Your right el dude a definite reason is lack of maintenance and then there's abuse.
Title: Re: studder in front end
Post by: old school truck dude on January 26, 2011, 10:43:14 PM
Im pretty sure you have a bad cv axle. Its hard to check them sometimes..  ;D
Title: Re: studder in front end
Post by: Kyle on January 27, 2011, 07:48:39 AM
Quote from: old school truck dude on January 26, 2011, 10:43:14 PM
Im pretty sure you have a bad cv axle. Its hard to check them sometimes..  ;D

i would think that if i still had cvs lol its a solid axle front now

and it seems a bigger portion of the issues were solved, had the ubolts tightened back up and the major choppiness is down. all thats left is what feels like the nobs from the tires going down the road, which could be due to the worn out leaf springs and sad looking bushings...
Title: Re: studder in front end
Post by: old school truck dude on January 27, 2011, 04:51:58 PM
How about the u-joints at the outer ends of the axles? Those being bad would definitely cause the problem youre having.  Worn out springs n bushings usually tend to make the vehicle wander more so than cause a vibration like what youre talkin about ;D
Title: Re: studder in front end
Post by: Kyle on January 27, 2011, 07:11:33 PM
i dont really know how to check them without pulling the whole axle apart... i can rotate the shafts with the driveshaft and they seem to be pretty good, they dont squeak like theyre dry or anything... otherwise idk how to check em ==idunno
Title: Re: studder in front end
Post by: MR NASTY on January 28, 2011, 01:02:11 AM
Stick a screwdriver or pry bar and see if you get any movement between the caps and braces.
Title: Re: studder in front end
Post by: old school truck dude on January 28, 2011, 01:44:26 PM
The u-joints dont cost that much , maybe just change them for peace of mind??? ==idk
Title: Re: studder in front end
Post by: Kyle on January 28, 2011, 01:59:05 PM
i think i might do that if i tear it all apart in the spring like im planning to.... i just hope ill still have the time to do it lol