« previous next »
Pages: 1 [2] 3 4 ... 6   Go Down

Author Topic: SYE's  (Read 9955 times)

0 Members and 1 Guest are viewing this topic.

Offline FourbangerYJ

  • Servicing Squirrels Since 1995®
  • Member
  • *
  • Posts: 3372
Re: SYE's
« Reply #15 on: July 16, 2013, 05:10:35 PM »
Quote from: Jeffy on July 16, 2013, 04:27:18 PM
Yeah that's a slippery slope...

For what I need right now, the regular SYE will fit the bill.  I'd be able to drive the Jeep long distances without the noise from the mismatched/steep driveshaft angle at 70 mph.  Honestly, I'm making it a expedition vehicle out of it.  I don't really need, a lower gears.  Fire trails and gravel roads at most I think.  I need the 300-700 mile dependability more then anything else.  I've got a yearly trip to LA and now I have a trip to Delano coming up in a few months.  I'd normally rent a car but I can put that into the Jeep and then be able to do other road trips.

What I mean by slippery slope is if I do a Slim SYE, I've got to get a pulse modulator so I can get the speedo to read correctly.  The SYE is $100 more.  Then pulse modulator is around $100, IIRC.  Then do I get the 1.25" chain and sprocket set as well?  What about a 6 gear planetary since I'm already in there.  How about a 2Lo kit?  I have two months to have it road worthy.  The HD SYE's will pay for itself in the first trip.


The other problem, the JBC Shorty as well as TeraFlex's Super Short aren't in stock.

I hear ya.
« Last Edit: July 16, 2013, 05:11:09 PM by FourbangerYJ »
Logged
Scott~

Using tools you have not used in a while is like shaking hands with old friends. :nod:

Offline sharpxmen

  • Chief Squirrel Blower®
  • Member
  • *
  • Posts: 7093
Re: SYE's
« Reply #16 on: July 16, 2013, 05:45:34 PM »
you don't need super-short but measure the d/s angle at full extension to make sure you have enough in the CV, ran into this issue and had to take the CV apart. you'll also need to adjust the pinion angle
Logged
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Offline Jeffy

  • Administrator
  • Member
  • Posts: 14934
Re: SYE's
« Reply #17 on: July 16, 2013, 06:34:48 PM »
Quote from: neale_rs on July 16, 2013, 05:06:49 PM
For fire trails and gravel roads plus highway use, the SYE will serve you well.  No need to spend more than necessary.


Yeah, unfortunately I'm not getting into the rocks.  Haven't been for a while.  Still, the 2.72:1 is good enough to get through the Rubicon.   Even if I decide to go Klune, I could go to a Shorty or a Atlas II I'd be neutral, money-wise since I would have spend the money on a car rental and have to return the car afterwards.

I've got an OSH hardware a few miles away so I can get Craftsman tools there.  So, am I right that I need snap ring pliers as well as locking ring?  From the pics I've seen the snap ring is behind the tail housing and the locking ring is holding the sprocket on.
Logged
Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

Offline Jeffy

  • Administrator
  • Member
  • Posts: 14934
Re: SYE's
« Reply #18 on: July 17, 2013, 01:56:09 AM »
Well the deed is done.  I've ordered the JB Conversions Standard HD kit.  Hopefully shipping will be swift.  I've got about a month to get things sorted.  I've also got to 'fix' my AC again.  Maybe even put my OBA back in while I'm at it.  I have a set deadline of the first week of Sept.
Logged
Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

Offline RNandKT

  • 4BangerJP.com® Donator
  • Member
  • *
  • Posts: 77
Re: SYE's
« Reply #19 on: July 19, 2013, 05:38:47 PM »
Not sure if you still need it but Novak covers the differences really well here.

http://www.novak-adapt.com/knowledge/np_nvg_input_gears.htm
Logged

Offline Jeffy

  • Administrator
  • Member
  • Posts: 14934
Re: SYE's
« Reply #20 on: July 19, 2013, 09:03:35 PM »
Quote from: RNandKT on July 19, 2013, 05:38:47 PM
Not sure if you still need it but Novak covers the differences really well here.

http://www.novak-adapt.com/knowledge/np_nvg_input_gears.htm
Yeah, they cover the input shafts well but not the shift fork and sprocket needle bearings issues.

I'm now waiting for the JBC SYE.  Then once I get it in I'll order the shaft.  That might take 1-2 weeks.  I could order it before but they sorta guess on the length.  I think JBC's yoke is shorter then the AA so the length will be a bit longer.
Logged
Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

Offline neale_rs

  • Member
  • Posts: 3583
Re: SYE's
« Reply #21 on: July 19, 2013, 11:17:58 PM »
Plus you have a D44, and you may need to adjust the pinion angle.
Logged
'95 YJ, 33 x 12.5 mud tires, RE 4.5 ED lift, Atlas 4 speed, rear D44, ARBs front and rear, 4.56 gears, 8000# winch

Offline Jeffy

  • Administrator
  • Member
  • Posts: 14934
Re: SYE's
« Reply #22 on: July 20, 2013, 12:28:31 AM »
Quote from: neale_rs on July 19, 2013, 11:17:58 PM
Plus you have a D44, and you may need to adjust the pinion angle.
The pinion angle isn't going to be a problem.  I have some degree shims I removed before and I can add a shackle lift back on.

I just hope it all arrives before my deadline.  Otherwise I'll still be renting a car for my trip.
Logged
Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

Offline sharpxmen

  • Chief Squirrel Blower®
  • Member
  • *
  • Posts: 7093
Re: SYE's
« Reply #23 on: July 20, 2013, 09:09:28 AM »
do you need the SYE for this particular trip?
Logged
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Offline Jeffy

  • Administrator
  • Member
  • Posts: 14934
Re: SYE's
« Reply #24 on: July 20, 2013, 12:31:44 PM »
Quote from: sharpxmen on July 20, 2013, 09:09:28 AM
do you need the SYE for this particular trip?
The Jeep drives but once I get up to 70 mph and let off I get the rattling noise from the upper U-joint.  I'll have to see if I can grease it enough to make it stop.
Logged
Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

Offline sharpxmen

  • Chief Squirrel Blower®
  • Member
  • *
  • Posts: 7093
Re: SYE's
« Reply #25 on: July 20, 2013, 12:39:35 PM »
Quote from: Jeffy on July 20, 2013, 12:31:44 PM
The Jeep drives but once I get up to 70 mph and let off I get the rattling noise from the upper U-joint.  I'll have to see if I can grease it enough to make it stop.

can't you just replace the u-joints for now, would be cheaper than renting a car.
Logged
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Offline Jeffy

  • Administrator
  • Member
  • Posts: 14934
Re: SYE's
« Reply #26 on: July 20, 2013, 01:03:01 PM »
Quote from: sharpxmen on July 20, 2013, 12:39:35 PM
can't you just replace the u-joints for now, would be cheaper than renting a car.
I did replace it.  I think it's a combination of the steep angle and the shaft being out of sync a little.  Hence wanting to do the SYE.
Logged
Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

Offline Jeffy

  • Administrator
  • Member
  • Posts: 14934
Re: SYE's
« Reply #27 on: July 20, 2013, 03:28:48 PM »
Well, I greased it as well as I could.  The sound is about half as loud.  I'll probably just drive it once I get the A/C sorted again.  It really needs a SYE though.  been saying that for a decade now.  Amazingly I'm still using the slip yoke.
Logged
Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

Offline Bounty Hunter

  • Member
  • Posts: 1658
    • http://www.sija.org
Re: SYE's
« Reply #28 on: July 26, 2013, 09:20:26 AM »
I've installed dozens of SYE's and rebuilt many a 231.  You'll have to knock the caged bearings out of the main hub, every YJ has them but the 95.5.  The '95.5 (at least mine) was a bit of hybrid 231 with some similarities of the TJ 231.  It's easily done with a block of wood, brass drift, and hammer.

You'll need split ring pliers, that is all.  The ends look like knurled duck-bills and they're used to spread the split-rings enough to slip them off the shaft.

You can upgrade to a wide chain and 6-gear planetary but the stock 231 is plenty for a 4banger.  I put them in mine because I had them on hand.  I did the 2lo while it was apart, great for rough rocky trails where you need the slow speed but not necessarily 4wd.  Also great with a front locker.  The 4-gear planetary is a slight upgrade and found in some 4.0L Jeeps.

You can get the upgrade parts from t-cases like the 231d, 231hd, 233c, etc.  Good option if you can get the donor t-case for cheap.

You can still adjust your speedo with the change of the speedo gear, or just run a GPS for speedo.  An erroneous speedo is all the signal the ECM needs.

Grab a used TJ/XJ/MJ front driveshaft and have it shortened for the rear if you want to save some coin.
Logged

Offline Jeffy

  • Administrator
  • Member
  • Posts: 14934
Re: SYE's
« Reply #29 on: July 26, 2013, 02:10:02 PM »
I'm gonna pass on all other upgrades since I don't really need them.  I don't want to have to put more money into it then what I have to.  I might revisit it again later but at this point it's not in the cards.  I need it driveable and ready for a 600 mile road trip in a months time.  I'm still waiting on the SYE to be delivered.  It's in transit.

I was looking at pics and there seems to be a snap-ring when you take the slip-yoke off.  Between the slip-yoke and the speedometer housing.  (Snap-ring with two holes)  Then there's the lock ring holding (Large slot) the main sprocket on?

I don't have the time to look for a donor.  You rarely find Jeeps in any of the yards anyway.  So I'm just going to order one.
Logged
Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."
Pages: 1 [2] 3 4 ... 6   Go Up
« previous next »