Scalpel

iTrader: (4)

This is for those that personally setup gears.

What setting your pinion bearing preload, do you test your preload by either of the following two methods with an inch-lb TQ wrench:

1) Do you use a lever style in-lb TQ wrench and see how much tq is needed to get the pinion to begin to roll, or...

2) Do you use a dial type TQ wrench and determing the rolling resistance by maintaining the pinion rotating speed and determining the amount TQ it requires to keep it rotating at the same speed?

Or do you do neither?

JNorris

iTrader: (4)

1) Do you use a lever style in-lb TQ wrench and see how much tq is needed to get the pinion to begin to roll

Number 1.

Scalpel

iTrader: (4)

JNorris, thanks man.

Any others?

Jorday

My friend used method number 1 when we set up the gears in both of our cars.

kp

iTrader: (34)

Number one or just when it feels right if I'm in a hurry

Jason99T/A

iTrader: (21)

This is the Snap-On tool I have used when doing gear swaps.

http://buy1.snapon.com/catalog/pro_d...store&tool=all

With new bearings, I generally set the pre-load at ~20 lb-in and around ~10 lb-in with used bearings.

Scalpel

iTrader: (4)

Jason, do you use method #1 or #2 in the first post?

1fastWS6

iTrader: (3)

Preload ISN'T the amount of rotating force it takes to get the pinion to BEGIN to turn. It's the amount of turning resistance while it's rotating. I use a small beam style torque wrench and turn it almost a full turn while watching the needle. Use method #2. Using #1 will likely not give you enough bearing preload.

Craig

Jason99T/A

iTrader: (21)

Levi, sorry, I thought I posted that my original post. Guess I didn't.

I use method #2 with the tool I listed above.

JeffT

iTrader: (22)

I use the same tool that Jason uses and I look for 25lb-in rotating on new bearings and 15lb-in on used bearings. So basically, your looking for the amount of TURNING preload as opposed to break away preload.

2000 ws6

iTrader: (10)

Levi here, on my brother's computer...

Thanks guys. I suspected #2 was the correct way. A buddy of mine in Diesel Mechanic School told me that was how they determined pinion bearing preload on rearends. I just wanted some confirmation.

BudH

iTrader: (3)

#2 with a 50 inch lb torque wrench!