Little Bird

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littlebird

member
Feb 26, 2019
264
349
63
NY
Spent so much time dressing up this Sterling 10.25 dually rear, probably should have just bought a fabricated housing, but then I wouldn't have learned anything. Upper link tabs came out pretty decent

Mods so far:

  • Welded in Dana 60 snouts to convert to full-float 5 x 5.5 hubs and shorten to 70.5" wms to wms
  • Welded tubes to center section
  • Tabbed for lower and upper link mounts
Going to run 4.56 gears with a Detroit Truetrac and 35 spline axles. Hopefully setting up the gears is not a pain, no adjusters, just shims..

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smokeysevin

is Ron Burgundy?
Dec 28, 2012
871
528
93
Houston
Buy or make a setup bearing for the pinion gear and consider using a solid spacer and shims to set the bearing preload. It makes setting up the gears easier imo. It is not particularly hard but it can be tedious.

Sean
 

littlebird

member
Feb 26, 2019
264
349
63
NY
Back from a brief hiatus playing with the financial markets. The world has gone crazy--collecting my acorns for the time being.

In regard to the Bird, I've made my final concessions with regard to the 3 link geometry, so now it's time to get serious about the driveline.

Motor and trans are bushing mounted.

I have two different driveline setups in mind. Wondering which you guys think is better.


Option A uses a bushing mounted carrier bearing that allows a WIY driveshaft stub to pass through the the carrier bearing. This design has the benefit of:
- 1 less U-joint
- A bushing mounted carrier bearing,
Con:
- It s in my opinion, a weaker design than option B.


Option B uses a double sided U-Joint carrier bearing with a super beefy solid mounted housing. This design has the benefit of:
- A much stronger carrier bearing mounting apparatus
- Ample support to prevent the slip shaft movement from tugging on the transmission tail housing
- An extra u-joint to accommodate any misalignment motor/trans torque causes under load
Con:
-
1 extra u joint
- More vibration unless I make the carrier bearing crossmember bushing mounted

Below is a shitty sketch of the options as well as both carrier bearing assemblies I'm considering.

Which would you go with? THANKS!
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marcytech

Mega Member
Mar 16, 2011
6,667
1,481
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I just meant like one with a regular ole gm style carrier bearing that you’d buy from autozone or whatever.

Not sure it’s “better” but forsure looks more cost effective

Sent from my iPhone using Tapatalk
 

FasterNU

Mega Member
Jun 28, 2006
8,262
1,983
113
San Diego
Funny.... I just went with A, exactly. Found one on fleabay for $290 minus the bushings/bolts

There are some other hard mounted high speed sealed bearing options.

Wide Open Racing has some

 

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