The 5.29 Mega Thread!!

Well, my rear end with Nitro gears is getting opened up for the 6th or 7th time and having the ring and pinion (and all bearings, shims, etc. replaced.

Over the last few hundred miles, what was a very mild (I would almost say normal) rear diff whine has gotten extremely loud. There is some speculation as to manufacturing issues with the ring gear in my truck as far as height and roundness which would have contributed to the diff lock sensor issues I was experiencing earlier on.

Based on a visual of the gears/wear pattern when it was opened up a couple weeks ago everything looks OK to the naked eye, but the whine is now very loud. The only thing that is questionable is the shine on the pinion gear but it is hard to say if that is an issue with what appears to be a perfect wear pattern on the ring. Luckily the parts supplier and gear installer are taking care of everything so that is good. I’ll keep you posted on what happens when the rear is set up again with all new parts.

In the meantime here is a little video of the rear after being opened up and checked out a couple weeks ago. This is after approximately 5k-10k miles.

 

9 thou backlash is a little wide, but stil acceptable. Did they also record preloads and do a pattern check?

 

This was pre-“reset”. The whole thing was pulled back apart and a solid spacer installed as well. I believe he reset it at 0.006. Pattern was checked and was good. He did check preload (and again when resetting it) but I don’t recall those numbers. I’ll get all measurements, recordings, etc. on the re-rebuild when it happens in the next week or 2.

 

I had @ZUK do my gears. Will be installing the diffs this weekend.

 

I dread changing gears. I hope I don’t get gear whine too.

 

Does anyone have recommendations for shops in Utah to get gears done? I've heard Agility Customs is pretty good.

 

Got the truck put back together today/tonight.
Have to relearn to drive the truck. Completely different feel with rpms vs speed etc. Going to be a fun break in period.

 

Twas the shield on my catylytic converter

 

It was topping out at like 83-84mph, someone on fb asked if it was regeared, ended up having the prior owner call me and he told me it was.

 

Has anyone in the Salt Lake area worked with a shop to regear that they would recommend? Looking for a good value for sure, but also don't want some back alley job.

 

If you can afford the down time. Pull em and send em to Zuk.

 

I've heard Agility Customs does them. They're a reputable shop, but not sure how often they do regears.

 

PM sent

 

I would love to learn this info too. Whatever it is.

 

Midnight 4x4.

 

I was referred to The Yota Guy in Midvale by a couple of off-road shops in Utah County. Tried to get pricing and timeframe from Midnight 4x4 several times with no luck. I’ve got gears scheduled with TYG at the end of this month. Fingers crossed.

 

Thanks!

 

It’s been about 10 months and I’m looking into getting front/rear 5.29 diff oil changed. This will be 2nd. Got the initial 500m oil changed back in Oct 2019. Should i stick with the same: Lucas 85w-140?

and how many 1-Gallon do i need?

 

Yes, stick with it, and you'll need 2 of those.

 

Thanks!
Not finding 1-gallon on ecgs so Amazon it is but which seller to trust? Where did you guys buy it from? And when at what miles did you change your 2nd change?

LUCAS 10045 Heavy Duty 85/140 Gear Oil - 1 Gallon

$35 Lucas Oil 10045 Heavy Duty SAE 85W-140 Gear Oil - 1 Gallon

https://www.amazon.com/dp/B000IG20SQ/ref=cm_sw_r_cp_api_i_M.vrFb4CK90K0



***Update: looks like Summit Racing has it.
https://www.summitracing.com/parts/luc-10045-1

https://www.summitracing.com/search...tch&SortOrder=Ascending&keyword=Lucas 85w-140