I am doing my first gear swap on a D44 and i was hoping to get some advice on the Pinion tourqe when installing the yoke and pinion. I have read its around 225ft/lbs. My tourque wrench goes to 175. So i thought i would at least try to get to the 175 and see what the pre load was and i am unable to even turn the pinion. If i tighten the nut more than 75lbs it i will not turn. I am puting .035 inner and .07 outer shims to get started as i didn't have anything to refrence and its all new pinion and gear set up.
Maybe i am not assembling it correctly, does anyone have a good diagram that shows the order of parts.
Thanks

Since you're torque wrench only goes to 175 ft lbs, you should set it to it to 75 ft lbs to get a "feel" for that torque measurement. Then sent to your 175 max and torque 'er down. Then take a normal breaker bar and give it the extra 75 ft lbs of "feel" you experienced before. No problem :grinpimp: ...well except the fact that fact that anything more than 75 seizes the pinion...hmmm. Don't know. :confused:

Hope that helps...well once you figure out the shim issue and you do need to torque 'er down to 250 ft lbs, use the "feel" method! :smokin:

Bump for a brotha in need...

You may need to post in hardcore, as no one seems to be hardcore enough in the non hardcore section to answer R&P questions...:)

are your bearings going metal on metal or do they have some lub in them? Try adding some gear oil to the bearings, pinion and carrier.... is your carrier preload to much? that would make it really hard to sping the pinion. Can you spin it with the carrier out?

sounds like too much pinion preload, so you should take it out and add shims to the outer part of the pinion.

Thanks guys, i did get that part fixed i think i might have f*cked a bearing though, its notchy when i get the carrier in. Also what do guys do to get to the 255ft/lbs. Is that really the tourque on the pinion nut?
Thanks
CH

Thanks guys, i did get that part fixed i think i might have f*cked a bearing though, its notchy when i get the carrier in. Also what do guys do to get to the 255ft/lbs. Is that really the tourque on the pinion nut?
Thanks
CH

Umm... I put the torque wrench on the pinion nut with some red locktite and tighten to 250ft/lbs. All the higher mine goes, but I figured that was close enough.

While setting up the pinion, I just went until tight. The clearance difference seemed NIL between tight with a 1/2" socket wrench and 250ft/lbs tight.

Sounds like you need to add shims to the preload stack. You should keep an eye on the pinion preload as you're tightening the pinion nut. Don't go straight to 250ft-lbs and then check it. You can damage the bearings if it gets too tight.

Changing the shims under the inner pinion bearing cup/race will change your pinion preload. You just need to compensate the same amount in the preload stack whenever you change the pinion depth.

Go to Lowes and buy a bigger torque wrench. You can get a Kobalt that goes up to 275ft-lbs for $90.
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