BluePonyGT
Well-Known Member
- Joined
- Mar 24, 2018
- Threads
- 39
- Messages
- 540
- Reaction score
- 270
- Location
- Seattle, WA
- First Name
- Corey
- Vehicle(s)
- 2017 Grabber Blue GT Premium 6MT
- Thread starter
- #1
I happen to notice yesterday while under the car adjust the e-brake that I have a leaking pinion seal.
Bummer.
My 2017 has 57,000 miles. Limited slip 3.31 third-member. Manual 6 speed flange. So I have to mark everything, pull the drive shaft. Remove the pinion nut while holding the flange from turning, pull the flange, pull the old seal, prep and install the new one, work the flange back on with the old pinion nut, install and torque the new pinion nut only to where the old one is pre-loaded to. Car will be on jack stands, but I'm ok with all of that.
Questions:
1. What's the best way to measure pre-load on the pinion nut since it is staked to the pinion shaft? I realize having a dial or beam style torque wrench is necessary, but in/lbs? I assumed that nut is on there torqued quite a bit so how exactly am I measuring it? What's the torque spec to begin with? I realize I could mark everything and count threads, etc. to get the new nut to the same location, but I seriously want to know the best way to measure pre-load on the pinion bearing with the existing nut.
2. Should I commit to changing the gear oil by pulling the cover, clean/inspect and reseal/re-fill? If so what's the best gear oil to use? What's used from the factory?
3. I'm planning on the big GT350R brake kit upgrade with new half-shafts in the spring anyway. I plan on replacing the axle seals and bearings for the new half-shafts. Should I wait and do this then? Seems like a good idea, but I'm nervous about waiting.
Bummer.
My 2017 has 57,000 miles. Limited slip 3.31 third-member. Manual 6 speed flange. So I have to mark everything, pull the drive shaft. Remove the pinion nut while holding the flange from turning, pull the flange, pull the old seal, prep and install the new one, work the flange back on with the old pinion nut, install and torque the new pinion nut only to where the old one is pre-loaded to. Car will be on jack stands, but I'm ok with all of that.
Questions:
1. What's the best way to measure pre-load on the pinion nut since it is staked to the pinion shaft? I realize having a dial or beam style torque wrench is necessary, but in/lbs? I assumed that nut is on there torqued quite a bit so how exactly am I measuring it? What's the torque spec to begin with? I realize I could mark everything and count threads, etc. to get the new nut to the same location, but I seriously want to know the best way to measure pre-load on the pinion bearing with the existing nut.
2. Should I commit to changing the gear oil by pulling the cover, clean/inspect and reseal/re-fill? If so what's the best gear oil to use? What's used from the factory?
3. I'm planning on the big GT350R brake kit upgrade with new half-shafts in the spring anyway. I plan on replacing the axle seals and bearings for the new half-shafts. Should I wait and do this then? Seems like a good idea, but I'm nervous about waiting.
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