Power divider Q

[Straydog954]

Hi all. Working with a crdp202 front rear. Can an air lock power divider be added to this rear by just swapping out the auto power divider or is there more to it ?

[Joey Mack]

I beleive so. The power divider housing is longer on the front end. The rear is the same and the splines in the cam drum should also be the same.  The drive shaft will need to be shortened,  but thats a small price for what you will gain with a locking power divider. 

[terry]

Better get a manual, i think the older series of front rears on a standard power divider to change to air operated i think the outer cam on power divider had splines that engaged front and rear end, and that entails taking front rear apart.   terry

Edited yesterday at 03:27 AM by terry

[Joey Mack]

The outer cam is different.  It has clutching teeth for the sliding clutch which is in its own housing mounted on the front of the cam housing..  making it longer on the front end. I should go get my book and post pictures, but I cant right now.  

[fjh]

2 hours ago, terry said:

Better get a manual, i think the older series of front rears on a standard power divider to change to air operated i think the outer cam on power divider had splines that engaged front and rear end, and that entails taking rear apart.   terry

Yup !

[Straydog954]

I was going to try and find an air locker in a salvage yard but may have to buy the whole rear and swap it that way   

[Joey Mack]

Take the side cover off and check the bevel gear condition, and be sure to look at the ratio stamped in the housing.  

[Straydog954]

Will do. I have the auto power divider on my other truck and it’s worthless sometimes and other times I have actually seen all tires spinning   It’s hit or miss whether or not your getting unstuck 

 

[Joey Mack]

Yep. They suck.

[Joey Mack]

Fjh ??? Do you recall having to do anything inside the rear end when converting frow auto to air locking power divider. I dont... i thought the main housing is the same, but the outer cam drum is longer and has the clutching teeth for the sliding clutch and fork , whos housing bolts on to the main P.D. housing.  I think setting tooth pattern and backlash is checked and adjusted if needed. I dont remember having to change the bevel gear set.  

[terry]

I should dig out some of my old manuals, but isn’t the outer cam and pinion gear all one piece? Maybe i’m off base here?   Terry  please correct me if i am wrong 😁Or is the outer cam splined to the pinion shaft with a nut?

Edited 14 hours ago by terry

[BottleHauler84]

I have a 200 series front diff with air actuated style power divider laying in my shop as a spare or parts.

Unfortunately I dont have a non-air actuated style to compare parts with, but I know the outter cam is different like Joey said because it has teeth for the sliding clutch. The sliding clutch slides on the input shaft to lock it to outter cam ( thus engaging power divider)

Asfar as the main power divider housing,  I dont know if they are different,  but I took a picture of the part# for you to compare to yours.  Its a 36KN59 casted on the top side of the housing.  I dont know if any of this helps, but I thought id post it incase you need part numbers from a air actuated 200 series power divider. 

 

[fjh]

22 hours ago, Joey Mack said:

Fjh ??? Do you recall having to do anything inside the rear end when converting frow auto to air locking power divider. I dont... i thought the main housing is the same, but the outer cam drum is longer and has the clutching teeth for the sliding clutch and fork , whos housing bolts on to the main P.D. housing.  I think setting tooth pattern and backlash is checked and adjusted if needed. I dont remember having to change the bevel gear set.  

Pinion is the same the housing is likely different ! because of the sliding clutch So he needs the outter cam and the housing and the actuator housing to complete this and hopfully he has enough slip on the drive shaft to compensate for length! or he will need to shorten!