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#1006386 - 08/17/10 09:46 PM 4.90 or 4.88 gear question
zarktheshark Offline
Rock Warrior
Registered: 12/08/08
Posts: 655
Loc: Monroe, Wa *****
I have the rear axle from a 1997 montero sport with disk brakes and 4.63 gears. i want either 4.88 or 4.90, but they did not come in the sports so i cannot do a part look up in ASA. so, my question is, can anyone say for sure if a 4.88 or 4.90 3rd member from a regular Montero is a direct bolt in? or if I can take the R&P from one of these and put it into my 3rd? If anyone can give me a part number or year of what I should get, that would be a great help. Thanks.
_________________________
'88 Raider. 2.6L dead...2.4L swap in progress, AT, 33's, 2 bouncy seat,AC, CC, 2.25 exh, 2" Tbar, 2" BL, rear DB, rear LSD,4.90's, SW hubs,gen2 uca's, KYB shocks, snorkel, elec fan, MSD.

'99 chev k3500 crewcab
'15 Subaru XV
'94 YJ
'86 Fiero GT
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#1006387 - 08/18/10 01:57 AM Re: 4.90 or 4.88 gear question [Re: zarktheshark]
4xmonty Offline
Body Damage is Cool
Registered: 08/13/04
Posts: 1420
Loc: Vallejo Ca
Look into the later model sports like around 2003
Russ
_________________________
GETTIN OLD THATS EARNED
Happy trails to you
(1)98 Montero SR RB Rock Crawlers BFG 33s Rancho 9000's OME Med coils rear
(2)95 4Runner All Pro Nerf bars BFG 32s
ARB bull bar
Downey 2" rear coils Downey headers
(3) 90 Montero LWB 3.0 auto
(4) 98 Kawi GPZ1100
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#1006388 - 08/18/10 03:41 AM Re: 4.90 or 4.88 gear question [Re: 4xmonty]
0778drz110 Offline
Body Damage is Cool
Registered: 08/31/08
Posts: 1171
Loc: Boca Raton, FL
Quote:
Look into the later model sports like around 2003
Russ


yup
4.90s are very common in sports, AFAIK they are the only montero with 4.90s...
_________________________
1988 Montero SWB: 2.6L 5spd 38.5x15 TSL Boggers on 15x14 wheels, 2" body lift, 2" suspension lift, cut fenders, roof rack, 6 55w lights, 10,000lb. winch, pintle hitch
1997 GMC Yukon SLT 4x4: Vortec 5.7L, 4L60E auto, NP243, bluetooth, nav, 4 12" subs, LEDs, HIDs, 2 7" LCDs
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#1006389 - 08/18/10 05:21 AM Re: 4.90 or 4.88 gear question [Re: 0778drz110]
zarktheshark Offline
Rock Warrior
Registered: 12/08/08
Posts: 655
Loc: Monroe, Wa *****
I have no idea how I missed that, but the 4.63 r&p are the same part number for all years. That said, the 4.9 r&p are all the same for all years. So, even though it was not an option for the 97 MS, the 4.9 should still be a bolt on upgrade and I can get them from any year. the 4.9 part number is MR296348. Is my logic flawed?
_________________________
'88 Raider. 2.6L dead...2.4L swap in progress, AT, 33's, 2 bouncy seat,AC, CC, 2.25 exh, 2" Tbar, 2" BL, rear DB, rear LSD,4.90's, SW hubs,gen2 uca's, KYB shocks, snorkel, elec fan, MSD.

'99 chev k3500 crewcab
'15 Subaru XV
'94 YJ
'86 Fiero GT
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#1006390 - 08/18/10 07:53 AM Re: 4.90 or 4.88 gear question [Re: zarktheshark]
Ian Sharpe Offline
Mudrunner
Registered: 06/18/02
Posts: 315
Loc: Braidwood NSW, Australia
Quote:
I have no idea how I missed that, but the 4.63 r&p are the same part number for all years. That said, the 4.9 r&p are all the same for all years. So, even though it was not an option for the 97 MS, the 4.9 should still be a bolt on upgrade and I can get them from any year. the 4.9 part number is MR296348. Is my logic flawed?


No, in Oz anyway the 4.90 is a direct swap in for the 4.636.
_________________________
97 Exceed, 3.5l SOHC auto, 4.90 gears, ARB front locker,rear Harrop E-Locker, Magnum winch, dual transfer cases also 2008 NS swb Pajero, front bar & winch
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#1006391 - 08/18/10 03:05 PM Re: 4.90 or 4.88 gear question [Re: zarktheshark]
hazy_daze Offline
Roll Me Over
Registered: 05/23/07
Posts: 4623
Loc: Athens, Georgia *****
The 4.90 rear R&P OE P/N is MR124858. From what I understand, for the front you'll want 4.88's from a GenI or the whole non-CAD diff unit from an AWD Sport. Both of which are becoming pink-with-purple-polka-dot unicorns to find...
_________________________
Fasteddy's advice is occasionally sound...
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#1006392 - 08/18/10 04:51 PM Re: 4.90 or 4.88 gear question [Re: hazy_daze]
Grasscat Offline
Roll Me Over
Registered: 02/05/05
Posts: 2649
Loc: Livermore, Ca ****
Nick posted this the other day.

Quote:
Pick Your Part - Help Yourself
1232 Blinn Avenue
Wilmington, Ca 90744

Early Gen2 4.875 gears and locker


Located here, as far as I know that's pure gold. Wish I lived close by. <img src="/forums/images/graemlins/smile.gif" alt="" />
_________________________
Michael j

TreadLightly! Trainer

Grasscat III, 1994 Gen 2 Five speed, Stock ( for a little while )

GrassCat II, 1998 Gen 2.5 Locked and loaded. Ran off with Hector.

GrassCat I, 1991 Gen 1 Ran off with Justice.
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#1006393 - 08/19/10 02:54 AM Re: 4.90 or 4.88 gear question [Re: hazy_daze]
LandRaider Offline

Forum Moderator
Registered: 09/04/01
Posts: 8557
Loc: Ocean Springs, MS *****
Quote:
The 4.90 rear R&P OE P/N is MR124858. From what I understand, for the front you'll want 4.88's from a GenI or the whole non-CAD diff unit from an AWD Sport. Both of which are becoming pink-with-purple-polka-dot unicorns to find...


Actually you want a high pinion 9 inch. <img src="/forums/images/graemlins/smile.gif" alt="" />
_________________________
87 Raider 4D56td v5MT1
31's..Basically Stock
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#1006394 - 08/19/10 03:59 AM Re: 4.90 or 4.88 gear question [Re: LandRaider]
zarktheshark Offline
Rock Warrior
Registered: 12/08/08
Posts: 655
Loc: Monroe, Wa *****
Quote:
Actually you want a high pinion 9 inch.


Doesn't everyone <img src="/forums/images/graemlins/lol.gif" alt="" />
_________________________
'88 Raider. 2.6L dead...2.4L swap in progress, AT, 33's, 2 bouncy seat,AC, CC, 2.25 exh, 2" Tbar, 2" BL, rear DB, rear LSD,4.90's, SW hubs,gen2 uca's, KYB shocks, snorkel, elec fan, MSD.

'99 chev k3500 crewcab
'15 Subaru XV
'94 YJ
'86 Fiero GT
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