Anyone running a Harrop rear e-locker? (4 Viewers)

[wardharris]

Happy HarropF/R and regeared truck owner here. Haven't put the front to any use yet, but very happy with the performance in the rear.

I like the simplicity and no maintenance for the Harrop a lot.

That said, I had ARB's F/R in two 40's and a front in my 100 and was really happy with them too. If I had the compressor already installed, it would make the decision tougher for sure. For me, it was an easy decision to go Harrop.

Agreed! Introducing my new mantra......

Harrops and ARBs are comparable, not identical. They are similar, but different. Do your research and look at the facts of actuation mechanism, service issues and cost. Yes, Harrops cost more, but in 8 years of production, they do not require service or repairs. Ask yourself what the real difference is over the service life of your vehicle. You won't go wrong with either brand.

Search MUD and look at the comments by people that own them and beware of vendor bias, including mine.

 

[Mineral]

FWIW, a couple months back Murph at Camelback installed Harrops on my 2011 front & rear. And re-geared to 4.88s. Heading into the tail end of the elk season in northern az, we got quite a bit of snow at the higher elevations of the unit and rain/mud at the lower. (This was just west of Flagstaff.)

The e-lockers were phenomenal. They engage with the click of a button, just like the factory center lock. Stupidly reliable and simple to operate.

Perhaps if I got into rock crawling where rolling back slightly could cause a disengage followed by being in a precarious enough situation to preclude an 1/8 to 1/4 forward rotation of the wheel to re-engage, then I’d go air locker. (Mad props to the TonyP and Taco2Cruiser types that find themselves provisioning to be in that situation.)

For my use case (basically overlanding expeditions), I have zero regrets going with the e-lockers - except for not having done it sooner.

 

[RET2]

^^^ This

 

[bloc]

I saw it mentioned elsewhere that the harrop unit for a 200 is significantly smaller than the ARB unit.. do we have more info on this difference? Does it even matter given the strength of the other parts in the drivetrain?

 

[orangefj45]

I saw it mentioned elsewhere that the harrop unit for a 200 is significantly smaller than the ARB unit.. do we have more info on this difference? Does it even matter given the strength of the other parts in the drivetrain?

Makes you wonder who "mentioned" that, right?!

We have sold & installed a number of these and NOT A SINGLE HARROP has experienced any issues in a 200-series cruiser. That's the bottom line!

Georg @ Valley Hybrids & Cruiser Brothers

 

[bloc]

Makes you wonder who "mentioned" that, right?!

We have sold & installed a number of these and NOT A SINGLE HARROP has experienced any issues in a 200-series cruiser. That's the bottom line!

Georg @ Valley Hybrids & Cruiser Brothers

Turns out slee mentioned it.

A few questions on ARB/Harrop lockers/ Toyota part numbers for oem locker switch-and special buy on ARB

Through a group buy on T4R I can get an RD152 ARB locker and compressor for $845, which seems like a really good deal. I've also been looking at the Harrop e-locker from Cruiser brothers. I've seen a lot of people like the ARB. Anyone have experience with the Harrop? Thoughts? I was leaning...

forum.ih8mud.com

He specifically said it wasn’t a knock on it, and didn’t say anyone has experienced problems, just that the carrier is quite small for an axle like a 200.

 

[orangefj45]

Thanks for the reply and link.

I'm sure the crew at Harrop have their reasons for using the "blanks" they choose to produce their version of the Eaton E-Locker. I'm sure a big part of that is basic economics and sometimes, less is more.
Bottom line is that we have yet to see a single failure of a Harrop locker in a 200, doesn't matter if it's in the front or rear,r what size tire they're running or how the vehicle is used. We have more than one customer with 315 tires on their 200 ( with plenty of added weight ) and they are beyond happy with the Harrop lockers and have had ZERO ISSUES.

Without wanting to get into a major discussions, I think at this point it's been well established that there isn't a "perfect" locker out there. The Harrop and ARB units are widely considered the best options. They both have proven themselves to be reliable and trustworthy. Both of them have their strong points and downsides.
IMHO, the Harrop is a better choice for overland type vehicles with FF axles since there are no issues with air leaks and the fact that it's a simpler system ( less parts, less chance of failure ).
For rock crawling, the ARB is "better" since it will not unlock if the vehicle changes direction going forward or back.

We have yet to have a customer purchase a Harrop locker ( or a pair ) and call back saying "I'm not happy with the product".

Georg

Valley Hybrids & Cruiser Brothers

 

[onedaatmc]

Very cool ! I'm looking forward to Georg dialing my LX 450 in with the Harrop Rear ...I also will be getting a regear and knuckle rebuild, etc. I had briefly thought about getting an old hot rod truck to cruise in my retirement ... and within a min or two, I thought NO , Its time to dial in the 96 lx450... we'd rather have more capability in our forest travels, than have a old hot rod ... I look forward to the dialed-in-ness !

 

[mep1811]

So I am limited to the Harrop or ARB for a rear locker. No such thing as a lock rite for a 200 Series ?

 

[grinchy]

So I am limited to the Harrop or ARB for a rear locker. No such thing as a lock rite for a 200 Series ?

Just differentials has Another elocker option. It’s rear only. tjm harrop arb for,the front

 

[mep1811]

Just differentials has Another elocker option. It’s rear only. tjm harrop arb for,the front

The TJM is an air locker. Looks like I'm limited to the Harrop E locker.

 

[grinchy]

Toyota 9.5'' 32 Spline, Auburn Electric Locker

Toyota 9.5' 32 Spline, Auburn Electric Locker

www.justdifferentials.com

 

[M1911]

The TJM is an air locker. Looks like I'm limited to the Harrop E locker.

Why is an air locker not an option for you?

 

[krice118]

I dont get how an auto locker is useful with a ATRAC vehicle? Wouldnt an auto locker cancel out atrac?

 

[M1911]

I dont get how an auto locker is useful with a ATRAC vehicle? Wouldnt an auto locker cancel out atrac?

I'm not sure what you mean by an "auto locker". The ARB and Harrop locking diffs do not lock automatically. They lock when you press a button. So I wouldn't call them an "auto locker".

What most people mean by an automatic locking differential is one that locks and unlocks without any input from the driver. I'm not aware of an automatic locking differential available for the 200.

I also don't know what you mean by "cancel out". My understanding is that ATRAC senses different rotational speeds of wheels and applies selective braking to try to transfer torque from the wheel that is slipping to the wheel that has traction.

In contrast, when you lock a differential, that means that both output shafts will spin at the same speed. If both shafts are spinning at the same speed, then I expect that ATRAC will not sense a slip and thus won't do anything.

 

[sdnative]

I'm not sure what you mean by an "auto locker". The ARB and Harrop locking diffs do not lock automatically. They lock when you press a button. So I wouldn't call them an "auto locker".

What most people mean by an automatic locking differential is one that locks and unlocks without any input from the driver. I'm not aware of an automatic locking differential available for the 200.

I also don't know what you mean by "cancel out". My understanding is that ATRAC senses different rotational speeds of wheels and applies selective braking to try to transfer torque from the wheel that is slipping to the wheel that has traction.

In contrast, when you lock a differential, that means that both output shafts will spin at the same speed. If both shafts are spinning at the same speed, then I expect that ATRAC will not sense a slip and thus won't do anything.

I think he was referencing the lock-rite (lock-right) locker mentioned above.

 

[krice118]

So I am limited to the Harrop or ARB for a rear locker. No such thing as a lock rite for a 200 Series ?

Sorry @M1911 I hsould have quoted above. I was referencing the Lock rite style locker as I dont see any benefit for one of those on a truck with ATRAC.

 

[M1911]

Sorry @M1911 I hsould have quoted above. I was referencing the Lock rite style locker as I dont see any benefit for one of those on a truck with ATRAC.

Doh! Sorry I misunderstood.

 

[mep1811]

Why is an air locker not an option for you?

More to go wrong. "O" rings air lines compressor . An E locker has less to go wrong.

 

[supercarrera]

Anyone else besides me planning on putting their corona virus bailout check towards new gears/lockers?