HP30 - Revolution Gear Install

crkid

Well-Known Member
Joined
Jan 11, 2014
XJ HP30 that I have in my Jeep TJ; installing Eaton elocker with Revolution 4.56 gears. Few notable "issues" listed below...
-All inner pinion race shims were burred from punch - had to take all of them to a bastard file to remove sharp edges.
-Revolution did not supply pinion preload (small ID shims) or carrier preload shims down to 0.003". How is gear set up even possible without adjustment this fine?
-1310 ubolt yoke slid off existing Spicer SVL 3.73 pinion relatively easy. No play, nice tight fit, slight tug and bam removed from pinion. Same yoke would slide about 1/3 of the way on new pinion before binding. It is currently installed with my set up bearings and took an impact with non locking nut to drive yoke on to new pinion splines. Is this normal?
-How do I remove this yoke without damaging my bearings?

Thanks for your input!
 
I use a dead blow or Like Matt said a hammer and punch. Air chisel with punch works too. I also flap wheel the ID of the outer pinion bearing for a better slip fit.
 
LumberjackLloyd said:
Sure, but wouldn't this be hammering tapered roller bearing into outer race to push yoke off? That isn't kosher for bearings.
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It’s less than ideal, but ain’t gonna hurt em. Also, you pretty much have no choice, unless you build or buy a yoke puller. I have a lot of tools and am quick to spend money on new ones and I still don’t have a yoke puller. I bet even gearboi @Jody Treadway doesn’t have a yoke puller.
 
No need to church it up, tap the yoke off with a hammer. You hurt anything.
If you wanna be fancy, you can use a 2 jaw puller. But really, no need to.
I've seen aftermarket gears come with a thick layer of anti-corrosion paint/dacrament on the splines. I just hit it with a flap disc till the yoke slides easier.
 
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Found a harmonic balancer puller works perfect for pulling yoke. Ran first pattern and backlash is dead on at 0.0065". Thinking I need to add 0.003" behind inner pinion race...thoughts?

@Jody Treadway @jeepinmatt
 

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LumberjackLloyd said:
Found a harmonic balancer puller works perfect for pulling yoke. Ran first pattern and backlash is dead on at 0.0065". Thinking I need to add 0.003" behind inner pinion race...thoughts?

@Jody Treadway @jeepinmatt
Click to expand...
It's a hair shallow. Now's the time to make it perfect. You'll have 0.0025" pinion depth shims in your kit. Add one to the pinion stack and button it up.
 
Jody Treadway said:
It's a hair shallow. Now's the time to make it perfect. You'll have 0.0025" pinion depth shims in your kit. Add one to the pinion stack and button it up.
Click to expand...
Thinnest inner race shims I have measure 0.0030-0.0035"...I will put one of those in I guess?

The shim pack for pinion preload (small diameter shims) didn't even come with shims thinner than 0.010"...and Matt at revolution doesn't seem to understand my issue because he has "sold these for 10 years and never had an issue with that same shim pack"...
 
LumberjackLloyd said:
Thinnest inner race shims I have measure 0.0030-0.0035"...I will put one of those in I guess?

The shim pack for pinion preload (small diameter shims) didn't even come with shims thinner than 0.010"...and Matt at revolution doesn't seem to understand my issue because he has "sold these for 10 years and never had an issue with that same shim pack"...
Click to expand...
They're gonna be 2.5 thousandths. Add one and rerun a pattern. You're very close, but still shallow.
 
LumberjackLloyd said:
Are you saying I am measuring wrong? (Good condition mitutoyo mics) or i need to source a shim kit with 0.0025” shims? If so, where from? ECGS is fairly close.
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The kits come with 0.0025, 0.005, 0.010 and 0.0020 shims. That's my point.
ECGS will have a kit if yours didn't come with it.
Your pattern is acceptable. Just a hair shallow.

Edit: add 1 of the thinnest shim you have.
 
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