Author Topic: Rear Driveline/ truck "bangs" when taking off. (Read 3367 times)

johnny_boy02 · « **on:** Dec 26, 2011, 04:28:44 PM »

Just bought this truck, the more I dig into it the more I am regretting my choice...

Anyway sometimes when putting the truck in gear and letting out the clutch there is a "bang" I thought it was something to do with the clutch but today I decided to make sure it was not a ujoint and I found that with the truck sitting in neutral I can turn the driveline about an inch.

Is this normal?

Hold on for video, its uploading to youtube

http://www.youtube.com/watch?v=udeKcWNbeWc&feature=youtube_gdata_player

CrazyYota · « **Reply #1 on:** Dec 26, 2011, 05:07:49 PM »

Not a mechanic but I would say your rear diff is toast. Pinion?

johnny_boy02 · « **Reply #2 on:** Dec 26, 2011, 05:14:51 PM »

Quote from: CrazyYota on Dec 26, 2011, 05:07:49 PM

Not a mechanic

Me either so I am rooting for it being a simple fix, but I agree it probably is toast. What really bothers me is it did it when I test drove the truck so it is my own stupid fault for assuming clutch problem and not figuring out what it really was.

yotatough · « **Reply #3 on:** Dec 26, 2011, 08:57:10 PM »

Is it geared? Or stock? What are the specs on it? I've had carrier bearings in 2 piece drive lines bang a little when bad.

4RunnerChevy · « **Reply #4 on:** Dec 26, 2011, 09:00:18 PM »

Its toast, start digging.

johnny_boy02 · « **Reply #5 on:** Dec 26, 2011, 09:33:22 PM »

Seller said 5.29s and full detroit. 1 piece driveline U joints are fine.

Im taking it apart tomorrow.

4RunnerChevy · « **Reply #6 on:** Dec 26, 2011, 09:36:58 PM »

Hopefully the gears are salvageable, good luck take pics. I love damage pics

toyotech · « **Reply #7 on:** Dec 26, 2011, 09:38:50 PM »

pull the rear diff out and see if the gears are still in good condition. if so you might be able to reset them back to the correct backlash. i wouldnt keep driving the truck. might just need to tighten up the pinon nut if it got loose but not sure if thats a good repair.

johnny_boy02 · « **Reply #8 on:** Dec 26, 2011, 09:43:15 PM »

Yeah I am super excited (and by excited I mean pissed) about the whole deal......... I will get some pics or video up so others can point and laugh.

It is not my main mode of transport, so that is good. It is for fun and for my girlfriend to get to work in the snow. Luckily the forecast is just showing rain.

Joey88RUNR · « **Reply #9 on:** Dec 26, 2011, 09:49:59 PM »

My rear 5.29 detroit does the same thing, no bang though..Im not worried about it though.

4RunnerChevy · « **Reply #10 on:** Dec 26, 2011, 09:51:01 PM »

Quote from: johnny_boy02 on Dec 26, 2011, 09:43:15 PM

I will get some pics or video up so others can point and laugh.

Yeah but, we also like to figure out what happened to get you back up and running.

Peterbuilt84 · « **Reply #11 on:** Dec 26, 2011, 09:54:38 PM »

Like what everyone has said and you said you are going to do, take it apart and take a look. Could be bad, could be good, at least you'll know for sure.

Slolyfe · « **Reply #12 on:** Dec 26, 2011, 10:00:02 PM »

My 5.29's and a Detroit EZ Locker did the same for years. With a ton of wheeling. But check it out. Its all easy to pull apart.

johnny_boy02 · « **Reply #13 on:** Dec 26, 2011, 10:01:06 PM »

At least its not the middle of summer and 104 degrees outside. And I dont have to work in gravel........

And its a good excuse to buy a brake bleeder and floor jack....

Since I am already going to be dirty I can change the slave cylinder at the same time..

And Im going to have to organize at least half the garage to make room..

Think positive.... Think positive....

4RunnerChevy · « **Reply #14 on:** Dec 26, 2011, 10:03:06 PM »

Quote from: Slolyfe on Dec 26, 2011, 10:00:02 PM

My 5.29's and a Detroit EZ Locker did the same for years. With a ton of wheeling. But check it out. Its all easy to pull apart.

I had an ez-locker, once apon a time, I sheared the crosspin, oh my what a bang.

johnny_boy02 · « **Reply #15 on:** Dec 27, 2011, 12:34:14 PM »

I dont see anything obvious other than pitting. It feels good out of the truck, no play.

IronClad · « **Reply #16 on:** Dec 27, 2011, 04:19:08 PM »

its probably just that detroit. they clang and bang and make all sorts of noise

johnny_boy02 · « **Reply #17 on:** Dec 27, 2011, 04:38:33 PM »

I have had detroits bang around before but never like this one, never had this much d-line play either.

Since I went through the trouble of taking it out I made the trek up to Inchworm to let them look at it. They said it looked fine.

Since the girlfriend will be driving this to work in the snow I am pondering a selectable locker. I have been trying to call Marlin all day to see if they have a lead time on 3rds but I can't get through.

Very frustrating.

4RunnerChevy · « **Reply #18 on:** Dec 27, 2011, 08:35:20 PM »

Run it, I was thinking it was gonna be gloomy

johnny_boy02 · « **Reply #19 on:** Dec 27, 2011, 09:26:07 PM »

Luckily no gloom. But I have a interesting issue with the front end. The drivers side hub/axle snap ring has no grove to remove it?

Anyone see this before? Im stumped.

4RunnerChevy · « **Reply #20 on:** Dec 27, 2011, 09:30:47 PM »

Thats normal, the c-clip does not have traditional eyes like a snap ring. You can try to use external snap ring pliers, two screw drivers, or flat nose snap ring pliers (best). Just dont lose it !

Rocksurfer · « **Reply #21 on:** Dec 27, 2011, 09:37:06 PM »

It a Detroit, they have some play and they will bang especially if it is not a soft locker. My brothers would disengage with a scary bang. The play seems a little excessive though may be how it was set up. If you don't know what you are doing have someone that does check the backlash.

johnny_boy02 · « **Reply #22 on:** Dec 27, 2011, 09:44:30 PM »

Quote from: 4RunnerChevy on Dec 27, 2011, 09:30:47 PM

Thats normal, the c-clip does not have traditional eyes like a snap ring. You can try to use external snap ring pliers, two screw drivers, or flat nose snap ring pliers (best). Just dont lose it !

There is no grove to get pliers, screw drivers, etc into, the "snap ring" is completely solid.

The passenger side is normal.

yotatough · « **Reply #23 on:** Dec 27, 2011, 10:06:56 PM »

could be me, but it looks like it is missing all together?

4RunnerChevy · « **Reply #24 on:** Dec 28, 2011, 07:04:02 AM »

Quote from: yotatough on Dec 27, 2011, 10:06:56 PM

could be me, but it looks like it is missing all together?

Good call, the glare is killing me. Looked like the flats are at 10:30 and 11:30.

johnny_boy02 · « **Reply #25 on:** Dec 28, 2011, 07:42:18 AM »

Less glare.

4RunnerChevy · « **Reply #26 on:** Dec 28, 2011, 08:01:51 AM »

I still can't tell, but you should be able see the groove at the end of the axle, about 1/8" from the end. If you remove the nuts and cone washers, and the c-clip was indeed missing, the lockout body should slide right off.

johnny_boy02 · « **Reply #27 on:** Dec 28, 2011, 08:07:31 AM »

Quote from: yotatough on Dec 27, 2011, 10:06:56 PM

could be me, but it looks like it is missing all together?

You are correct......... duh

johnny_boy02 · « **Reply #28 on:** Dec 28, 2011, 09:23:27 AM »

Do stock birfields have any kind of identifying mark?

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