Author Topic: Sport 4.90 Gears  (Read 4005 times)

BottomFeeder

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Sport 4.90 Gears
« on: April 14, 2017, 05:27:10 PM »
4.90 gears from a sport.  What years? 00-04? Looks like 3.5 and 3.0 were available in the sport of those years.  There are a couple in the local yards here in OKC.  Can I swap the ring and pinons fromthe sport to my 95SR?
1990 LS, 2" Body Lift, 33's, Dual LSD
1995 SR, 1.5 Body Lift, 33's
1999 Winter Package

Sparky

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Re: Sport 4.90 Gears
« Reply #1 on: April 14, 2017, 11:17:35 PM »
As long as the gears come from a 3.5 and go into a 3.5 it'll work. I ordered mine a couple days ago from a 2002 3.5 sport. I'll hopefully be able to do a write up on this.

Charly

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Re: Sport 4.90 Gears
« Reply #2 on: April 15, 2017, 07:08:16 AM »
For the front the whole center section can be swapped, which is easier than doing a ring and pinion.
For the the rear you can swap the third member, unless you have an air locker you want to maintain.Then you could do r & p.

I have heard it is 00- 04 Sports with 3.5 liter, they will have the fender flares.
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TyB

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Re: Sport 4.90 Gears
« Reply #3 on: April 18, 2017, 08:47:35 AM »
Thanks for the info Charly, I'm considering 4.90s as well unless I come across an SR with 4.63s and a locker.

With the Sport front center section: Does anyone know if the dash lights will still work when 4 wheel drive is engaged? Or will the front wheel lights flash?

For the rear: Since its a third member, am I correct to assume no gear lash has to be set? That would be a significantly easier driveway swap!


TOASTY

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Re: Sport 4.90 Gears
« Reply #4 on: April 20, 2017, 08:46:48 PM »
 The lights will flash when you engage 4WD, however you can wire the front detent plug into the T-case Detent for 4WD and it will just light up solid when in 4WD. It's very easy.

MudRaider

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Re: Sport 4.90 Gears
« Reply #5 on: April 23, 2017, 04:43:21 AM »
Quote from: TOASTY
Here are the ratio options and your axle options, use this info to figure out your gear vs axle applications

   Taken from Outerlimits
 [color:"red"] T/case & Final Drive Ratio's
 [/color] 
Gen 1

2.3 TD = 4.875, 5.29
2.6 / 2.5 TD = 4.625, 4.875
2.5 TDI = 4.625, 4.875
3.0 V6 = 4.625, 4.875
t/case = 1.944:1 low range for 2.6, 2.3 TD & 2.5 TD, 1.925:1 for 3.0 V6

Gen 2

2.6 = 4.875
2.5 TD & 2.5 TDI = 4.875, 5.29
3.0 V6 = 4.625, 4.875
2.8 D = 4.875
2.8 TDI = 4.90
3.5 DOHC V6 = 4.636
t/case = 1.925:1 low range for 2.6, 2.5 TD, 2.5 TDI & 3.0 V6, 1.90:1 for 2.8 TDI & 3.5 DOHC V6

Gen 3

2.8 TDI = 4.90 5sp man
3.2 DID = 3.90 5sp auto or 4.10 for 5sp man
3.5 SOHC V6 = 4.30 5sp man & 5sp auto
3.8 SOHC V6 = 4.30 5sp auto
t/case = 1.90:1 for all

Gen 4
3.8 SOHC V6 MIVEC = 4.30 5sp man and 5sp auto
3.2 CDI = 4.10 5sp man or 3.917 for 5sp auto
t/case = same as Gen 3

 [color:"red"]
Axle Data [/color] 

Gen 1

2.6, 2.3TD, 2.5TD & 2.5TDI (some) :-
front axle = 25 spline, 29mm diameter, diff = 7.25" diameter (low pinion)
rear axle = 28 spline, 30.5mm diameter, diff = 8" diameter
3.0V6 :-
front axle = 28 spline, 29mm diameter, diff = 8" diameter (low pinion)
rear axle = 28 spline, 30.5mm diameter, diff = 9" diameter

Gen 2

3.0V6 :-
front axle = same as Gen 1 except for NH & NJ auto has 7.25" diameter front diff (high pinion) NH & NJ 5sp man has 8" diameter front diff (high pinion)  [color:"blue"] some models with auto transmisions will also have 8" high pinion but will have smaller CV joints [/color]
rear axle = 28 spline, 30.5mm diameter, diff = 9" diameter

2.5TDI :-
same as NH & NJ auto

3.5V6 & 2.8TDI :-
front axle = 28 spline, 29mm diameter, diff = 8" diameter (high pinion)
rear axle = 31 spline, 33.5mm diameter, diff = 9.5" diameter

Gen 3

3.5V6, 2.8TDI, 3.2DID, 3.8V6
front axle = 28 spline, 29mm diameter, diff = 8" diameter (high pinion)
rear axle = 33 spline, 36mm diameter, diff = 9.5" diameter

Gen 4
same as Gen 3

Note :- Mitsu factory Aisin manual hubs (found on some models - Gen 1 or Gen 2 base models & Tritons) are interchangeable and will retrofit to all Gen 2 models with super select.
These will not fit to a Gen 3 model as they run solid one piece hub flanges (non-removable).

B

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Re: Sport 4.90 Gears
« Reply #6 on: May 01, 2017, 08:34:20 PM »
Looking forward to a solid write-up of the swap procedure.

A list of items to remove in order would be helpful for those that have never fully removed the front axles/differential!
2000 Montero LWB 3.5 SOHC Endeavor

1990 Eclipse GSX 2.0 Turbo AWD E-85

1991 Talon TSi 2.0 Turbo AWD

TOASTY

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Re: Sport 4.90 Gears
« Reply #7 on: May 02, 2017, 07:43:12 AM »
I'll see if i can get Ernest to do a write up on this stuff.

BottomFeeder

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Re: Sport 4.90 Gears
« Reply #8 on: May 05, 2017, 10:13:56 PM »
Thanks
1990 LS, 2" Body Lift, 33's, Dual LSD
1995 SR, 1.5 Body Lift, 33's
1999 Winter Package

Charly

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Re: Sport 4.90 Gears
« Reply #9 on: May 22, 2017, 02:30:06 PM »
it is my current understanding that if you are buying the front separately from the rear, the front can come from either a 3.0 or a 3.5liter  00-04 Sport  ( I am told to definitely get one without the disconnect as the disconnect parts interfere with the Montero's oil pan.).

The rear will need to be from a 3.5 liter Sport to ensure it has the 9.5" ring gear.

Please point out if this is inaccurate.

And yeah, Ernest, if you'd be willing. Love a write up on this.
« Last Edit: May 23, 2017, 09:49:24 AM by Charly »
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concealer404

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Re: Sport 4.90 Gears
« Reply #10 on: May 22, 2017, 02:34:28 PM »
How does one identify which front diffs do not have the disconnect?
1998 Montero Winter Package (For Sale)
1994 FZJ80 Land Cruiser (Wife's)
2006 V8 4Runner Sport Edition (Mine)

Charly

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Re: Sport 4.90 Gears
« Reply #11 on: May 22, 2017, 07:01:47 PM »
Disconnect axles have a bunch of stuff on the long tube side, such as a vacuum diaphragm. The ones without a disconnect with have a smooth long tube side.
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jaccox

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Re: Sport 4.90 Gears
« Reply #12 on: May 22, 2017, 07:22:29 PM »
Any particular reason for straying away from the disconnect?
1999 Montero. 33x10.5x15 General X3's. 4.90's w/rear locker. Full armor. ADD idler arm. ADD 1.5" complete lift. Siberiean Bushings everywhere. 150W alternator with upgraded 4 AWG leads and grounds. 2nd Battery in the rear for camping stuffs to come.

Charly

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Re: Sport 4.90 Gears
« Reply #13 on: May 22, 2017, 08:02:26 PM »
I was told the ones with the disconnect will not fit.
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TOASTY

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Re: Sport 4.90 Gears
« Reply #14 on: May 22, 2017, 08:50:07 PM »
 The Sport disconnect hits the Montero oil pan.