TrueTrac install questions Updated

[Timmy390]

Well decision made, I'm going to go with a TrueTrac 31 spline.

I've read the install instructions and can't find any information on:

Bearing size (saw where someone said it needed 102949 bearings vs. stock ?

Ring gear bolt size and length? I know my T-loc needed the small heads and 1 1/4 inch UNL. Saw something about "stock" bolts working with the Truetrac but what bolts are "stock"? Will the T-lock bolts work?

Thanks for the help.

Tim

 

[duffymahoney]

That is exactly what I did. Toms differentials set it all up, give them a call.

 

[Timmy390]

I hate to call them as I'm not buying any of the parts from them. I have everything to set it up myself.

Just need to know what bearings to get and ring gear blots.

Tim

 

[NC-Fordguy]

I hate to call them as I'm not buying any of the parts from them. I have everything to set it up myself.

Just need to know what bearings to get and ring gear blots.

Tim

http://eastcoastgearsupply.com

 

[Timmy390]

Ordered all the parts today.

Eaton TrueTrac 31 spline
Rear axles 31 spline
Ring gear bolts, 1 inch UHL
Bearing are supposed to be 102949's (same as what the track-loc was using.

Hoping everything will be here for the weekend.

Tim

 

[tirewater]

Www.gearinstalls.com has a number of truetrac installs shown. Not ford specific, but fun to look at nonetheless. Sometimes you learn something new. I had Zuk do my landcruiser 3rd years ago.

 

[Timmy390]

Cool, I'll give that a look.

I bought the whole unit so it "SHOULD" be just install bearing, ring gear and setup the rear gears again. Because I'm using the same gears, I don't think the pinion depth will change but not sure till I get the unit dropped in. Hoping just side to side adjustment is all that's needed.

Tim

 

[Rustytruck]

You need red loctite for the ring gear bolts and some brake cleaner to clean the bolts and threads in the ring gear. Gear marking grease, a gasket and new copper sealing washers for the carrier. New axle seals if your using sealed bearing axles. Gaskets for between the axle housing flange and the brake backing plates. Don't forget the gear oil and a gasket scraper. You made need to use the scraper and and some form of cutter to remove the copper sealing rings. You need to remove the copper rings or the pumpkin wont come out. You will need some form of spanner wrench for setting side bearing preload. Be careful pulling the pumpkin, its heavier than it looks and harder to pull out of the housing than you think it should, they are possessed, they want to jump up and fall on your exposed parts especially balancing it on a floor jack. Falling on exposed parts from a foot up in the air may cause permanent damages. You don't want to loose a finger or cripple your hand.

 

[Timmy390]

Thanks Rusty......

Pumpkin is already out and torn down due to the catastrophic failure of my Ford T-loc. I had to get in there to find the damage.

All good advice

 

[Timmy390]

Well the TrueTrac is installed along with WH 31 spline axles.

The axles came with no instructions and the WH website said to just install them and go.

Question, so no RTV or anything on the axles? I pulled the inner seal used by the old axles and bearings. The tapered roller bearings on the new axles had a rubber seal around them.

Anyone had these things leak? My housing ends are new (cut the old ones off 3 years ago due to damage from a bad wheel bearing. Just worried I'm going to make a mess on my first drive.

Tim

 

[xcntrk]

Are those the black label chromo axles from WH? I have the same 31 spline and agree no install instructions. I just replaced the axle tube seals, matched the correct side, and installed them. No RTV, no leaks. Although I don't recall a rubber seal? Note the bearings that come included on those axles are cheap Chinese crap. I had one go out on me with just a few thousand miles on it. I replaced with a higher quality Timken bearing (now also produced in CN).

 

[Timmy390]

I ordered these
http://www.wildhorses4x4.com/product/Extreme_Duty_Rear_Axle_Set_6675yr_Lg_Bearing_11in_Drum

They came with Timken bearings installed.

Tim

 

[Timmy390]

Well it's all installed and back on the the road. I was worried the axles would leak but they don't.

Drove it around some yesterday afternoon. All seems good. On to the next project/failure/issue that comes up.

Tim