Impending information dump for later reference (may or may not be useful, but I'm sure it'll help someone)
http://clubisuzu.proboards.com/index.cg ... thread=832
The content below is from a USA site so a couple of things to watch
- Amigo is pretty much a MU.
- Rodeo is sold in NZ as either a Wizard or 5 door Frontera.
- USA never got the diesel engines the 2.8 and 3.1 engines mentioned are chevy V6s
- Dana diffs are rare in Isuzus outside the USA We only get the Isuzu 8,10 and 12 bolt versions. Its a pitty because the range of lockers for Dana diffs is huge
WHAT AXLES DO I HAVE IN MY TRUCK?
ISUZU AXLE INFORMATION LIST
TROOPER
STOCK RATIO: 4.56:1 EXCEPT W/ WIDE TIRE OPTION 4.77:1
1985-86 4WD 2.3L 4CYL
FRONT: ISUZU IFS 8 BOLT (SOMETIMES REFERED TO AS 9 BOLT)
REAR: ISUZU 10 BOLT (3RD MEMBER, DRUM BRAKE)
1987 4WD 2.3L 4CYL
FRONT: ISUZU IFS 8 BOLT (OR)
ISUZU IFS 10 BOLT
REAR: ISUZU 10 BOLT (3RD MEMBER, DRUM BRAKE)
(NOTE: SOME SPLIT YEAR -SOME END OF YEAR MODELS HAD 12 BOLTS)
1988-91 4WD GM 2.8L V-6, 2.6L 4 CYL
FRONT: ISUZU IFS 10 BOLT
REAR: ISUZU 12 BOLT (3RD MEMBER, DISK BRAKE)
1992-97 4WD 3.2L 6 CYL
FRONT: ISUZU IFS 10 BOLT
REAR: ISUZU 12 BOLT (3RD MEMBER, DISK BRAKE)
98-2002 4WD 3.5L 6 CYL
FRONT: MODIFIED ISUZU IFS 10 BOLT
REAR: MODIFIED ISUZU 12 BOLT – LARGER OVERALL, DANA RING
GEAR ALMOST IDENTICAL TO D60 (3RD MEMBER, DISK BRAKE)
AMIGO
1989-1994 2.6L 4 CYL
FRONT: ISUZU IFS 10 BOLT
REAR: ISUZU 12 BOLT (3RD MEMBER, DISK BRAKE) (4WD & 2WD XS)
REAR: 2WD NON XS MODEL – ISUZU 10 BOLT
PICK UPS
1988+
FRONT: ISUZU IFS 10 BOLT
REAR: ISUZU 12 BOLT (3RD MEMBER, DISK BRAKE)
RODEO
1991-92 GM 3.1L V-6, 1993-94 4 CYL.
FRONT: ISUZU IFS 10 BOLT
REAR: GM 10 BOLT (DRUM BRAKE)
RODEO/ HONDA PASSPORT
1993-4 V-6, 1995-97
FRONT: ISUZU IFS 10 BOLT
REAR: DANA 44 (DISK BREAK, USES 4.10 RING GEAR ON 3.92 DOWN
SMALL CARRIER – THICKER THAN STANDARD RING GEAR)
1998-2001 3.2L 6 CYL
FRONT: ISUZU MODIFIED IFS 10 BOLT ( LIKE TROOPER)
REAR: DANA 44 ( SLIGHTLY MODIFIED, FINNED COVER 4.10 STOCK)
Isuzu Corp 8-bolt (front)
model year(s) 81-87 Pickups and Troopers
(87 being transition year to 10-bolt)
Some Pickups up to 95
configuration IFS
axle shaft diameter
spline count
ring gear 7.5"?
pinion
factory gear ratios
factory differentials
notes used a weaker hub design (fewer splines) than its replacement, the 10-bolt.
Isuzu Corp 10-bolt (front)
model year(s) 88+ Trooper, Rodeo, Amigo, Vehicross, Axiom
configuration IFS
axle shaft diameter
spline count 17-spline
ring gear 7.62"?
Reverse cut
Thinner ring gear than 10-bolt rear
pinion Shares same pinion bearings with 10-bolt rear
factory gear ratios 4.10 - Rodeo
4.30 - Rodeo
4.56 - Trooper
4.77 - '89 Trooper RS, '90 and '98 4x4 Amigo w/ 2.2L
aftermarket gear ratios 5.38 - Tera
factory differentials Shares same carrier and carrier bearings with 10-bolt rear
aftermarket differentials Auburn LSD
Aussie Locker - limited, exclusive with Independent4x.com
PowerTrax LockRight (from 10-bolt rear application) - discontinued
ARB (RD94) *see notes below
notes Variation exists for first half of ‘98
The 10 bolt from 1/98- 5/98 is non standard in design (DANA) and can not be used with an ARB locker, models produced from 6/98 on also had 4.77's an are the standard garden variety that will take an air locker - Swordy
The VehiCROSS' front suspension is the 1998+ Trooper's - Smiley
Isuzu Corp 10-bolt (rear)
model year(s) 81-87 Pickups and Troopers (87 being transition year to 10-bolt)
some Pickups up to 95
88-95 2wd regular cab Pup
Pickups with 2.3L and VIN starting JAA
93 2wd Amigo
width 2” narrower than '88 12-bolt rear
configuration leaf - common
coil - rear drive turbo Impulse
axle tube diameter
axle tube thickness
axle shaft diameter 1.50” shafts, neck down to 1.1” at splines
spline count 17-spline
ring gear Standard cut gears
Thicker ring gear than 10-bolt front
pinion shares same pinion bearings as 10-bolt front
brakes Drum
factory gear ratios 3.90 - Impulse
4.10 - 86-87 Turbo Diesel, 2wd regular cab Pup
4.56 - 2.3L
aftermarket gear ratios none
factory differentials open - common
LSD from rear drive turbo Impulse, could be used in 10-bolt front
shares same carrier and carrier bearings as 10-bolt front
aftermarket differentials PowerTrax LockRight - discontinued
notes 3rd member's are not interchangeable with 10-bolt front.
The LockRight #3111 had spacer blocks to go between the ends of the axles and the cross shaft. #3110 is identical, but without the spacer blocks. This locker was orginally designed for rear application, but was found to also work in the front.
Isuzu Corp 12-bolt (rear)
1st generation 2nd generation 3rd generation
model year(s) 89-94 4wd Amigo
88-91 Troopers
88-95 2wd Spacecab Pup
All 2.6L Pickups 92-97 Trooper
??-?? VX
98+ Trooper
width 58” wms to wms
(some reports of 56")
61” or 63” wms to wms
(w/ fender flares = 63") 63" wms to wms
configuration leaf coil coil
axle tube diameter 3" 3.5"
axle tube thickness
axle shaft diameter 1.32" 1.50"
spline count 26-spline 23-spline
ring gear 8.66"
(comparable to 8.5" diameter Dana44, but aprox 1/2" thicker) 9.61" Spicer-produced
(comparable to 9.75" diameter Dana60)
pinion pinion shaft larger in comparison over Dana44
brakes disc
disc - larger than 1st gen
integrated drum e-brake
disc
ABS rear ABS only - tone ring pressed onto the carrier
-or-
4 wheel ABS - sensors at the tubes
4 wheel ABS - sensors at the tubes
factory gear ratios 4.56 - common
4.77 - rare. found in '89 Trooper RS and select models with "SL2" option code. (wide tire package + snowflake wheels)
4.10 - 88-89 2wd Pickup ('GT5'), Amigo (aluminum wheels)
4.30 - Pickup ('S7C'), Amigo (steel wheels)
4.30, 4.56
aftermarket gear ratios 5.38 - Tera 5.38 - Iceland
factory differentials open, clutch-plate LSD open, clutch-plate LSD (std.)
aftermarket differentials ARB (RD44) ARB (RD85)
notes Sept 97 - 98: unidentified changes that prevent installation of ARB.
94 Amigo - 1st gen axle that used 2nd brakes
The VehiCROSS' REAR is from the earlier 1996-97 Trooper - Smiley
Isuzu/Dana Model 44 (rear)
1st generation 2nd generation
model year(s) 93-97 Rodeo
(with the 3.2L Isuzu engine) 98+ Rodeo, Amigo, Rodeo Sport
width 59.75 wms to wms 63” wms to wms
configuration leaf coil
axle tube diameter
axle tube thickness
axle shaft diameter
spline count 30-spline 30-spline
ring gear standard THICK D44 ring gear
pinion standard D44 pinion Larger diameter pinion shaft requiring a different ID on the pinion bearing... or a different bearing.
brakes 6cyl - disc
4cyl - drum
4x4 - disc
4x2 - drum
ABS Single ABS sensor on pumpkin or two in the tubes. ABS tone ring on carrier
factory gear ratios 4.10 - 15" standard wheels
4.30 - 16" optional wheels
4.56 - 4cyl
4x2 : 3.73 (98-99), 4.10, 4.30, 4.56, 4.78
4x4 : 4.10 (98-03), 4.30
aftermarket gear ratios any commonly available D44 ratio
factory differentials THICK ring gear on a LOW (3.73-) carrier
G80 option code - LSD 98 (possibly 99) LSD was optional. 00+ all had mandatory LSD. G80 option code does not apply to 2nd gen.
aftermarket differentials LockRight 2410 - open carrier No-Slip - Tracloc carrier
notes A few have reported needing to use one of the OEM pinion bearings to set up the pinion due to the ID of the housing finned aluminum diff cover.
Without some "juggling" of bearings or machine work, the 98+ gears would not "drop" right into the 93-97 housing, or any other D44 housing using standard gears.
GM Corp 10-bolt (rear)
not to be confused with the Isuzu Corp 10-bolt
model year(s) 91-93 Rodeo V6 (must be coupled with 3.1L GM engine)
Early US built Pickups with 2.3L and VIN starting 4S1 or 4SA
width
configuration leaf
axle tube diameter
axle tube thickness
axle shaft diameter
spline count 28-spline?
ring gear
pinion
brakes drum
factory gear ratios 4.30
4.56
aftermarket gear ratios
factory differentials open, LSD
aftermarket differentials
notes GM 10-bolt is a c-clip style axle... often undesirablable next to flange retained style such as Dana44
93-95:
drum brakes (4 cyl), 4.56 ratio (41/9 teeth, HC6)
drum brakes (4 cyl), 4.10 ratio (41/10 teeth, GT5)
drum brakes (4 cyl), 4.30 ratio (43/10 teeth, S7C)
disc brakes (6 cyl), 4.10 ratio (41/10 teeth, GT5)
disc brakes (6 cyl), 4.30 ratio (43/10 teeth, S7C)
96-97:
drum brakes (4 cyl), (4.56 ratio, 41/9 teeth, HC6)
disc brakes (6 cyl), (4.30 ratio, 43/10 teeth, S7C), 3 sensor ABS (sensor in pumpkin)
disc brakes (6 cyl), (4.30 ratio, 43/10 teeth, S7C), 4 sensor ABS (sensors in axle tubes)
98-99:
4x2 (drum brakes), 4.56 ratio (41/9 teeth, HC6)
4x2 (drum brakes), 3.73 ratio (41/11 teeth, 6NW)
4x2 (drum brakes), 4.10 ratio (41/10 teeth, GT5)
4x2 (drum brakes), 4.78 ratio (43/9 teeth, S2J)
4x2 (drum brakes), 4.30 ratio (43/10 teeth, S7C)
4x4 (disc brakes), 4.10 ratio (41/10 teeth, GT5)
4x4 (disc brakes), 4.30 ratio (43/10 teeth, S7C)
2000:
4x2 (drum brakes), 4.10 ratio (41/10 teeth, GT5)
4x2 (drum brakes), 4.78 ratio (43/9 teeth, S2J)
4x2 (drum brakes), 4.30 ratio (43/10 teeth, S7C)
4x4 (disc brakes), 4.10 ratio (41/10 teeth, GT5)
4x4 (disc brakes), 4.30 ratio (43/10 teeth, S7C)
2001-2003:
(2 Dr Sport & 4 Dr), 4x2 (drum brakes), 4.10 ratio (41/10 teeth, GT5)
(2 Dr Sport & 4 Dr), 4x2 (drum brakes), 4.78 ratio (43/9 teeth, S2J)
(2 Dr Sport & 4 Dr), 4x2 (drum brakes), 4.30 ratio (43/10 teeth, S7C)
(2 Dr Sport & 4 Dr), 4x4 (disc brakes), 4.10 ratio (41/10 teeth, GT5)
(2 Dr Sport & 4 Dr), 4x4 (disc brakes), 4.30 ratio (43/10 teeth, S7C)
2004:
(4 Dr), 4x2 (drum brakes), (4.30 ratio, 43/10 teeth, S7C)
(4 Dr), 4x4 (disc brakes), (4.30 ratio, 43/10 teeth, S7C)