locked rear axle

[brians306 23]

Hello all. just curious if all you pullers weld the rear axles?

[Pullstart 63,097]

Some people flip every other pinion, effectively locking the differential…

[brians306 23]

On 4/14/2023 at 9:30 PM, Pullstart said:

Some people flip every other pinion, effectively locking the differential…

I would assume you are speaking of the 8 pinion trans,?

[Pullstart 63,097]

1 minute ago, brians306 said:

I would assume you are speaking of the 8 pinion trans,?

I think people have done 8 and 10 pinions.  

[Oldskool 6,653]

@ebinmaine did you lock yours?

[ebinmaine 68,422]

11 minutes ago, Oldskool said:

@ebinmaine did you lock yours?

 

No sir. No need. 

My tractors are built HEAVY so I get traction.  

 

Also worth considering is that a locked rear does NOT want to turn. 

I've had great concerns about breaking an axle so I leave all our machines as either Open Diff 8 speeds or Limited Slip Differential 6 speeds.  

 

 

1 hour ago, Pullstart said:

I think people have done 8 and 10 pinions.  

 

8 pinions I've seen. 

10 I haven't. 

IMHO it's pointless to weld or lock a 10 pinion because it's already a Limited Slip Differential.   Locking up a 10 pinion could lead to easier damage than an 8 pinion because the pinions are smaller and the end plates are not as strong. 

 

 

 

[Pullstart 63,097]

Obviously, this is not a guarantee that it’ll perform or last as you expect.  These are not trucks and are sometimes treated as such.  Individual results may vary 

[ri702bill 8,507]

On 4/16/2023 at 7:38 PM, Pullstart said:

Individual results may vary

Recommended for ages 8 and above - some assembly required, batteries not included, may not be exactly as pictured, etc.....

[brians306 23]

On 4/14/2023 at 9:30 PM, Pullstart said:

Some people flip every other pinion, effectively locking the differential…

I flipped every other pinion and it locked one side. the other axle spins free. Not engaging the pinions

[ebinmaine 68,422]

27 minutes ago, brians306 said:

I flipped every other pinion and it locked one side. the other axle spins free. Not engaging the pinions

How many pinions?

If it's a 10 pinion it might not lock that way. 

Only 8 pinion diffs work that way and each set in sequence needs to be opposite.   

[brians306 23]

1 hour ago, ebinmaine said:

How many pinions?

If it's a 10 pinion it might not lock that way. 

Only 8 pinion diffs work that way and each set in sequence needs to be opposite.   

Its an 8 pinion. so your saying not every other one. but every other set?

[ebinmaine 68,422]

35 minutes ago, brians306 said:

Its an 8 pinion. so your saying not every other one. but every other set?

In stock form it's every other pinion. 

To lock it, have two opposing sets of two headed the same direction.  

I have an 8 speed open on the bench so I can get you pics tomorrow morning if it helps.  

[brians306 23]

19 minutes ago, ebinmaine said:

In stock form it's every other pinion. 

To lock it, have two opposing sets of two headed the same direction.  

I have an 8 speed open on the bench so I can get you pics tomorrow morning if it helps.  

I understand now thanks for the help..

[Toby Stockman 70]

yep i locked my pullers done a 8 speed and a 3 speed works great but you will go through tires like you wouldnt belive even on dirt/grass

[Lee1977 6,803]

Those that speed them up and trail ride through the woods weld the differential. One reason is traction the other is to have brakes on steep hills. Braking one wheel will lock and the other will freewheel 

[adsm08 2,184]

On 4/16/2023 at 11:11 AM, ebinmaine said:

IMHO it's pointless to weld or lock a 10 pinion because it's already a Limited Slip Differential.   Locking up a 10 pinion could lead to easier damage than an 8 pinion because the pinions are smaller and the end plates are not as strong.

 

Not necessarily. Limited slip takes half the power of the wheel slipping and sends it to the other wheel. It is very easy to get just as stuck with and LSD as you would be with an open rear. Half of zero is still zero afterall. How the power transferred also makes a difference in how well it works. Clutch-style LSDs tend to be more susceptible to that kind of issue. Torsen units, which more closely resemble the 10-pinion rears, are better. They have a lower torque bias and so if you have one wheel standing still and the other spinning fast enough you get get a Torsen to act like a locker.

[RandyLittrell 3,885]

I pulled garden tractors for a long time and none of the pullers I pulled with locked the diff.

 

You really don't need it, I never had just one tire spin out. 

 

Randy