Eaton Truetrac ZF 9-1/4”

[Tim Garceau]

Moe’s kit came in the mail, planning on installing next weekend but haven’t heard of any success stories yet. If nobody has instruction/video i can set up some footage.

Presuming it’s a simple plug and play once I back off the driver side adjuster a few turns after measuring backlash to match slop and confirm ring gear-pinion contact.

Already made a custom preload tool(~75ft#), just need to tap on the carrier bearings.

 

[misfit77]

I am not brave enough to do it myself.

I have an appointment for dec 8th.
My installer didnt seem like it will be an issue. Well except one screw not being fully seated.

Sent from my moto g power using Tapatalk

 

[Daw14]

Picked my truck up on Wednesday, tru-trac and 456 gears installed. In the process of breaking in. Everything feels good, no noise, I have the 6 speed. The waiting is tough!

 

[Tim Garceau]

Best way to break in a helical set is normal use and abuse.

just like my engines, run them hard so they mesh well mechanically.

 

[RLJ10X]

Daw, which transmission do you have? 6, right?

What Gears did you have before the swap? I'll bet you're going to like those 4.56s.

 

[Daw14]

Yes 6, had 355s

 

[Solid State]

Picked my truck up on Wednesday, tru-trac and 456 gears installed. In the process of breaking in. Everything feels good, no noise, I have the 6 speed. The waiting is tough!

2wd or 4x4? Which brand gears did you go with, and ballpark for install, if you don't mind me asking? Wanting to do same with my 2011 6 spd. Thanks!

 

[Daw14]

RCSB 2wd revolution gears, 300 for the install

 

[clint440]

Moe’s kit came in the mail, planning on installing next weekend but haven’t heard of any success stories yet. If nobody has instruction/video i can set up some footage.

Presuming it’s a simple plug and play once I back off the driver side adjuster a few turns after measuring backlash to match slop and confirm ring gear-pinion contact.

Already made a custom preload tool(~75ft#), just need to tap on the carrier bearings.


View attachment 228715

View attachment 228714

Cool. Why this brand vs others or OEM?

 

[Tim Garceau]

Helical/torsen are more aggressive in torque transfer ratio and instantaneous when one side begins slip. No wear maintenance like a clutch-based OEM anti-slip or friction additive necessary, just straight 75-80w90 non-synthetic and will outlast the vehicle barring catastrophic failure. The downfall vs a true locker is that if one tire is completely off ground the mechanical transition needs user/electronic TC brake input.


https://www.carthrottle.com/post/en...differential-and-whats-most-suitable-for-you/

My current 3.92 ring carrier is open, so most of the time I want the rear end to oversteer it becomes an inside tire loss of traction. Using 4wd with a rear posi will create less opportunity for heat/wear in the 44-44 transfer case.

 

[WY-Dave]

Helical/torsen are more aggressive in torque transfer ratio and instantaneous when one side begins slip. No wear maintenance like a clutch-based OEM anti-slip or friction additive necessary, just straight 75-80w90 non-synthetic and will outlast the vehicle barring catastrophic failure. The downfall vs a true locker is that if one tire is completely off ground the mechanical transition needs user/electronic TC brake input.


https://www.carthrottle.com/post/en...differential-and-whats-most-suitable-for-you/

My current 3.92 ring carrier is open, so most of the time I want the rear end to oversteer it becomes an inside tire loss of traction. Using 4wd with a rear posi will create less opportunity for heat/wear in the 44-44 transfer case.

Had the TTs front and rear of the Jeeps and they were fantastic!!!! When warranty runs out, going to see if I can get one for the truck.

Eaton & Detroit are interchangable



Finding off-the-shelf gear oil without AF additive here is impossible. This is the stuff the 4x4 shop that installed the TTs put in. If the gear oil says something to the effect of "good for all rearends" or "AF additive not needed" then look on.
https://www.northridge4x4.com/part/...-brands-all-purpose-gear-lube-gl-5-80w-90-1qt



https://www.eaton.com/ecm/groups/public/@pub/@eaton/@vehicle/documents/content/pct_1087652.pdf

When I had a slippage, 1 or 2 clicks on the parking brake was all it took to get it to re-engage. Just gotta remember to take the break off when not needed haha.

not mine

 

[Wild one]

Had the TTs front and rear of the Jeeps and they were fantastic!!!! When warranty runs out, going to see if I can get one for the truck.

Eaton & Detroit are interchangable
View attachment 228891


Finding off-the-shelf gear oil without AF additive here is impossible. This is the stuff the 4x4 shop that installed the TTs put in. If the gear oil says something to the effect of "good for all rearends" or "AF additive not needed" then look on.
https://www.northridge4x4.com/part/...-brands-all-purpose-gear-lube-gl-5-80w-90-1qt



https://www.eaton.com/ecm/groups/public/@pub/@eaton/@vehicle/documents/content/pct_1087652.pdf

When I had a slippage, 1 or 2 clicks on the parking brake was all it took to get it to re-engage. Just gotta remember to take the break off when not needed haha.

not mine

Damn it's easy to find mineral gear oil up here north of the border,and it's cheap,lol.

MotoMaster Extreme Pressure Gear Oil, 5-L Canadian Tire

 

[Ashkon]

Curious question. How does the tru-trac work with the traction control?

 

[Tim Garceau]

I don’t plan on finding out, always leave it disabled.

It electronically should only activate when both rear tires are spinning above a PCM limited delta speed compared to the front tires. Or when one side is completely frictionless...

 

[Tim Garceau]

Left the carrier outside, bearings on the furnace and tapped them on

 

[Wild one]

Left the carrier outside, bearings on the furnace and tapped them on

View attachment 229502

Does that mean we should start calling you "old school Tim",lol.

 

[Tim Garceau]

I ran out of time to use the hydraulic press at the office. Room temp there was about .008” of press fit so I needed a little help.

this is “old school” ahah

 

[Wild one]

I ran out of time to use the hydraulic press at the office. Room temp there was about .008” of press fit so I needed a little help.

this is “old school” ahah

I was probably about 6 or 7 when i remember my dad replacing the bearings on our old PTO driven combine in the field.He used a 20lb propane bottle to cool the pto shaft,and an old charcoil BBQ with a bucket of oil on the grill to heat the bearings,and they slid right on,lol.That's going back over 50 years now,lol

 

[Pull Ya]

Rick--if your that old you need to stop by the "senior citizen" thread--we'd be glad to have you----LOL
Jay

 

[crackerjack1957]

^^^
Ouchie........LoL