[zildjian4life218]

Will this work? Lol torque is weight * distance so I need 14in/lb and I stole one of my moms 2lb jogging weight things. So if I place the weight 7" from the center of the pinion nut wont it be exerting 14in/lbs? I'm trying to upload a pic from my phone and its not cooperating. I'm trying to get the pinion bearing preload set for my 9" and the Yukon rebuild kit says 13-15in/lbs. Thanks for any input! I have a very small piece of wood bolted across the u joint that I place the weight on.

[zildjian4life218]

success!!!

[LATECH]

Originally Posted by zildjian4life218

Will this work? Lol torque is weight * distance so I need 14in/lb and I stole one of my moms 2lb jogging weight things. So if I place the weight 7" from the center of the pinion nut wont it be exerting 14in/lbs? I'm trying to upload a pic from my phone and its not cooperating. I'm trying to get the pinion bearing preload set for my 9" and the Yukon rebuild kit says 13-15in/lbs. Thanks for any input! I have a very small piece of wood bolted across the u joint that I place the weight on.

Torque is actually force times radii. And it is only an accurate calculation if the force applied is at a 90 degree angle, otherwise the force is multiplied or diminished.
The way you are going about it is not going to be accurate no matter what weight and distance you working with. Get a needle inch pounds wrench and do it right.

[zildjian4life218]

Originally Posted by latech

Torque is actually force times radii. And it is only an accurate calculation if the force applied is at a 90 degree angle, otherwise the force is multiplied or diminished.
The way you are going about it is not going to be accurate no matter what weight and distance you working with. Get a needle inch pounds wrench and do it right.

Yeah... I had a feeling. Can I use a beam deflection style wrench?

[LATECH]

Yeah, thats what you want.

[zildjian4life218]

Originally Posted by latech

Yeah, thats what you want.

any suggestions? I really don't need one that goes much over 30. Only rearends I rebuild are GM 10 bolts, ford 9" and 8.8. Most I see go from 0 to 150 which i think will be hard to justify the difference between 12 and 15in/lb on the gauge.

[LATECH]

Try a park TW 1 1/4 drive wrench or an Allen 2955-Wr 1/4 inch drive.
With a smaller range the ACCURACY of a low torque application will be much better and easier to acomplish .
Obviously you will need to get 2 adapters to get back to a 1/2 size for the socket needed to turn the pinion, but they are available too.
I think the KD tools 2955 is the same as the allen also.

[zildjian4life218]

Originally Posted by latech

Try a park TW 1 1/4 drive wrench or an Allen 2955-Wr 1/4 inch drive.
With a smaller range the ACCURACY of a low torque application will be much better and easier to acomplish .
Obviously you will need to get 2 adapters to get back to a 1/2 size for the socket needed to turn the pinion, but they are available too.
I think the KD tools 2955 is the same as the allen also.

Awesome thanks! ill order one today. My rebuild kit says 13-15in/lb of preload for the pinion bearings... but my richmond ring and pinion dvd say 20 to 25in/lb.... I imagine the dvd is for their rebuild kit. but I should probably follow the specifications from my yukon rebuild kit. Also my rebuild kit doesn't have a specification for the ring bearing preload. But the richmond dvd says 15 in/lb. What do you think I should preload them to?

[LATECH]

I would use the richmond spec for the pinion bearing preload.
Carrier bearings need a certain preload as well as being in the correct backlash value.
If you are changing the carrier (to a yukon I presume) then you need to setup the side bearing preload , and then change shim amount from side to side to get the correct backlash.
Once again refer to the manufacturer spec for both.

[zildjian4life218]

Originally Posted by latech

I would use the richmond spec for the pinion bearing preload.
Carrier bearings need a certain preload as well as being in the correct backlash value.
If you are changing the carrier (to a yukon I presume) then you need to setup the side bearing preload , and then change shim amount from side to side to get the correct backlash.
Once again refer to the manufacturer spec for both.

Awesome! thanks again!

[speedbump]

I would think the 25 in. lb. would show for new bearings and the 15 in. lb. for used bearings. I personally never set a new bearing at less than 25 in. lb. + - 2 in. lb.