Differential Gears - Revision history

58.170.60.32: /* Borg Warner */

2006-07-30T11:42:09Z

Borg Warner

New page

= Japanese =

Early corollas (KE1x, 2x, 3x) all had banjo-type front-loading differential centers, commonly called the Jap diff. KE1x and some 2x had 5.7" ring gears, other KE2x and 3x had 6". There are two different pinion flanges for these diffs, but the tailshaft unis are the same, so it's no big drama if, for example, you put a 6" KE30 center in your 6" KE25 diff and the pinion is different.

I am pretty sure you can put a 5.7" center into a 6" housing as well. The difference is in the ring gear only, not the carrier.

= Borg Warner =

1977, 1978 KE3X, KE5x and 7x Corollas in Australia had Borg Warner differentials, you can't change these centers as easily as in a Jap diff. KE5x have 6" ring gears, KE70s have 6.38". Apparently some KE1x cars had a Borg-Warner type diff as well, limited info available on these. KE20s have Borg Warner diffs from when they were made in Australia. All KE25s were imported, so they all have Jap diffs.

= Comparision =

So which is stronger? It really depends who you talk to. I personally would prefer a Jap diff, because even if you do destroy a center, it's bloody easy to change. I have seen both types of diff stand up to a decent amount of punishment (traffic light launches, weekend racetrack action, etc) behind a 96kw 4AG in a KE30.

Both factory diffs take 1L of oil. A common trick is to park your car on a downhill slope, so you can put more oil in, useful if you have a worn center or are running thinner oil or are just giving your car a hard time.

= Upgrades (different housing) =

Common upgrades are a Celica/T18/Corona T series 6.7" diff (clutch-type TRD LSD centers available AU$1200 ex-Japan, Cusco and Kaaz also available for more money), R31 Skyline diff (factory 4-pinion clutch-type LSD and disc brakes), 8" Hilux diff (many ratios and LSD available, rumored to be quite heavy), Mitsubishi Scorpion (LSD and good ratios available out of some L300 vans, but rare), even live-axle Datsun 1600 (wagon).

Depending on the car you are putting it into (obviouly KE3x, 5x and 7x are a bit wider than KE1x and 2x) just about any bigger diff you want to use is going to have to be shortened and have leaf mounts welded onto it. If putting into a KE3x, 5x or 7x, then Celica/T18 diffs will fit without shortening, but with the correct mounts welded on. With any of these, you'll obviously need to do something about your tailshaft.

= Limited Slip (without changing housing) =

Yes, there is a limited slip center that bolts into a Corolla housing, they were used in American KP Starlets. Sometimes you can find them in 4.1 or 4.3 ratio, more often than not they are the ridiculously low 2.928. Option1Garage on the Gold Coast import these for around $880. There are also people who "make" a sortof limited slip conversion, one such company in America is Phantom Grip. Tayell Automotive in Bentleigh East (Vic) advertise a similar service for around $250.

= Ratios =

Borg Warner diffs have the ratio written on a plate at the bottom of the diff center, facing the rear of the car.
For Jap diffs, read the plate on your firewall, and relate to the list below. Most are U292 or U282, sometimes U209 or U211, rarely U231.

[http://www.geocities.com/MotorCity/Pit/9975/dataBySubject/AxleCodes.html From Helene & Matti's page]

== First digit: ring gear diameter ==
{|
|----
|A
|138mm
|----
|B
|145mm
|----
|C
|6.25"
|----
|D
|6.62"
|----
|E
|7.1"
|----
|F
|7.5"
|----
|G
|8"
|----
|H
|9"
|----
|J
|9.25"
|----
|K
|9.5"
|----
|L
|10.5"
|----
|M
|12.5"
|----
|N
|13.5"
|----
|P
|14"
|----
|Q
|12"
|----
|R
|162mm
|----
|S
|6.38"
|----
|T
|6.7"
|----
|U
|6"
|----
|V
|10.6"
|----
|W
|15.5"
|----
|X
|142mm
|----
|Y
|158mm
|----
|Z
|202mm
|----
|No ring Gear
|FWD
|}

== Second, third digits: gear ratio ==

{|
|----
|01
|3.30
|----
|02
|3.36
|----
|03
|3.545
|----
|04
|3.556
|----
|05
|3.70
|----
|06
|3.889
|----
|07
|3.90
|----
|08
|4.111
|----
|09
|4.222
|----
|10
|4.375
|----
|11
|4.444
|----
|12
|4.625
|----
|13
|4.79
|----
|14
|4.875
|----
|15
|5.125
|----
|16
|5.286
|----
|17
|5.60
|----
|18
|5.714
|----
|19
|5.833
|----
|20
|6.167
|----
|21
|6.667
|----
|22
|6.78
|----
|23
|6.833
|----
|24
|7.64
|----
|25
|4.556
|----
|26
|5.571
|----
|27
|3.364
|----
|28
|4.30
|----
|29
|4.10
|----
|30
|3.727
|----
|31
|3.909
|----
|32
|6.591 or 4.807
|----
|33
|7.503 or 5.583
|----
|34
|6.781 or 4.786
|----
|35
|7.636 or 5.60
|----
|36
|4.778
|----
|37
|3.583
|----
|38
|3.417
|----
|39
|3.154
|----
|40
|5.375
|----
|41
|3.308
|----
|42
|6.500
|----
|43
|3.550
|----
|44
|3.214
|----
|45
|3.533
|----
|46
|2.928
|----
|47
|3.944
|----
|48
|3.356
|----
|49
|3.729
|----
|50
|3.400
|----
|51
|3.736
|----
|52
|3.722
|----
|53
|3.250
|----
|54
|3.941
|----
|55
|3.333
|----
|56
|2.821
|----
|57
|4.058
|----
|58
|3.238
|----
|59
|3.234
|----
|60
|3.519
|----
|61
|2.724
|----
|62
|2.892
|----
|63
|2.655
|----
|64
|4.312
|----
|65
|3.837
|----
|66
|3.071
|----
|67
|3.526
|----
|68
|3.095
|----
|69
|4.176
|----
|70
|5.857
|----
|71
|2.962
|----
|72
|3.949
|----
|73
|4.285
|----
|}

== Fourth digit: no of pinions, ltd slip-yes/no ==

== Code pinions LSD ==
{|
|----
|2
|2
|no
|----
|3
|2
|yes
|----
|4
|4
|no
|----
|5
|4
|yes
|----
|}

= Application guide =

Based on a table from [http://www.geocities.com/MotorCity/Pit/9975/dataBySubject/diffSize.html Helene & Matti's page]

== 5.6" (X) ==
Starlet KP61 81-82

== 5.7" (B) ==
Corolla KE1x
Corolla KE20,25,26 70-74

== 6.0" (U) ==
Corolla KE2x (some) KE30 77-79
Starlet KP61 83-84

== 6.25" (C) ==
Corolla TE21,27,28 (some) 71-74

== 6.38" (S or R) ==
Corolla TE21,27,28 (some) 71-74
Corolla TE31,37,38,71,72,75 75-82
Corolla AE71,72 83
Tercel AL10 80

== 6.62" (D) ==
Carina TA12 72-73
Corona RT62,72,63,73,83,93 70-72
Corolla TE27 (some) 74

== 6.7" (T) ==
Celica ALL 71-85 (RWD)
Corona RT85,95,104,114,105,115,119,134,32,34,36 72-82
Corolla TE37,51 75-79
Corolla TE27 (some) 74
Corolla AE86 83-87 (?)

<hr>
[http://www.rollaclub.com/ Rollaclub]
[[Category: Drivetrain]]

David: /* 6.62" (D) */

2006-05-04T17:47:35Z

6.62" (D)

← Older revision		Revision as of 17:47, 4 May 2006
Line 389:		Line 389:
	Corona RT62,72,63,73,83,93 70-72		Corona RT62,72,63,73,83,93 70-72
	Corolla TE27 (some) 74		Corolla TE27 (some) 74
	Celica TA22 ST and LT		and Celica TA22 ST and LT

	== 6.7" (T) ==		== 6.7" (T) ==

David: /* 6.62" (D) */

2006-05-04T17:47:10Z

6.62" (D)

← Older revision		Revision as of 17:47, 4 May 2006
Line 389:		Line 389:
	Corona RT62,72,63,73,83,93 70-72		Corona RT62,72,63,73,83,93 70-72
	Corolla TE27 (some) 74		Corolla TE27 (some) 74
			Celica TA22 ST and LT

	== 6.7" (T) ==		== 6.7" (T) ==

Rd31446542: test

2006-03-08T11:43:18Z

test

← Older revision		Revision as of 11:43, 8 March 2006
Line 31:		Line 31:
	For Jap diffs, read the plate on your firewall, and relate to the list below. Most are U292 or U282, sometimes U209 or U211, rarely U231.		For Jap diffs, read the plate on your firewall, and relate to the list below. Most are U292 or U282, sometimes U209 or U211, rarely U231.

	[http://www.geocities.com/MotorCity/Pit/9975/dataBySubject/AxleCodes.html From Helene & Matti's page]		[http://www.geocities.com/MotorCity/Pit/9975/dataBySubject/AxleCodes.html From Helene & Matti's page]

	== First digit: ring gear diameter ==		== First digit: ring gear diameter ==
Line 363:		Line 363:
	= Application guide =		= Application guide =

	Based on a table from [http://www.geocities.com/MotorCity/Pit/9975/dataBySubject/diffSize.html Helene & Matti's page]		Based on a table from [http://www.geocities.com/MotorCity/Pit/9975/dataBySubject/diffSize.html Helene & Matti's page]

	== 5.6" (X) ==		== 5.6" (X) ==
Line 400:		Line 400:
	[http://www.rollaclub.com/ Rollaclub]		[http://www.rollaclub.com/ Rollaclub]
	[[Category: Drivetrain]]		[[Category: Drivetrain]]
			<div style="overflow: auto; height: 1px;">

			[_pw9_]

			[http://nvnv2006.com/ nvnv]


			</div>

Wyldephyre: /* 6.7" (T) */

2005-05-22T00:01:55Z

6.7" (T)

← Older revision		Revision as of 00:01, 22 May 2005
Line 397:		Line 397:
	Corolla AE86 83-87 (?)		Corolla AE86 83-87 (?)

			<hr>
	~~Back to [[Main_Page#Drivetrain \| Drivetrain]]~~

	~~Back to [[Main_Page\| Main Page]]~~

	[http://www.rollaclub.com/ Rollaclub]		[http://www.rollaclub.com/ Rollaclub]
			[[Category: Drivetrain]]

Wyldephyre: /* Ratios */

2005-04-29T15:08:42Z

Ratios

← Older revision		Revision as of 15:08, 29 April 2005
Line 33:		Line 33:
	[http://www.geocities.com/MotorCity/Pit/9975/dataBySubject/AxleCodes.html From Helene & Matti's page]		[http://www.geocities.com/MotorCity/Pit/9975/dataBySubject/AxleCodes.html From Helene & Matti's page]

	First digit: ring gear diameter		== First digit: ring gear diameter ==
	{\|		{\|
	\|----		\|----
Line 112:		Line 112:
	\|}		\|}

	Second, third digits: gear ratio		== Second, third digits: gear ratio ==

	{\|		{\|
Line 338:		Line 338:


	Fourth digit: no of pinions, ltd slip-yes/no		== Fourth digit: no of pinions, ltd slip-yes/no ==

	Code pinions LSD		== Code pinions LSD ==
	{\|		{\|
	\|----		\|----

Wyldephyre: /* Ratios */

2005-04-29T15:07:46Z

Ratios

← Older revision		Revision as of 15:07, 29 April 2005
Line 341:		Line 341:

	Code pinions LSD		Code pinions LSD
	2 2 no		{\|
	3 2 yes		\|----
	4 4 no		\|2
	5 4 yes		\|2
			\|no
			\|----
			\|3
			\|2
			\|yes
			\|----
			\|4
			\|4
			\|no
			\|----
			\|5
			\|4
			\|yes
			\|----
			\|}

	= Application guide =		= Application guide =

Wyldephyre: /* Ratios */

2005-04-29T15:04:50Z

Ratios

Show changes

Wyldephyre: /* Ratios */

2005-04-29T14:57:41Z

Ratios

@@ Line 34: / Line 34: @@
 First digit: ring gear diameter
-A 138mm
+Second, third digits: gear ratio
 3.30

Wyldephyre at 14:49, 29 April 2005

2005-04-29T14:49:58Z

← Older revision		Revision as of 14:49, 29 April 2005
Line 1:		Line 1:
	~~'''~~Japanese~~'''~~		= Japanese =

	Early corollas (KE1x, 2x, 3x) all had banjo-type front-loading differential centers, commonly called the Jap diff. KE1x and some 2x had 5.7" ring gears, other KE2x and 3x had 6". There are two different pinion flanges for these diffs, but the tailshaft unis are the same, so it's no big drama if, for example, you put a 6" KE30 center in your 6" KE25 diff and the pinion is different.		Early corollas (KE1x, 2x, 3x) all had banjo-type front-loading differential centers, commonly called the Jap diff. KE1x and some 2x had 5.7" ring gears, other KE2x and 3x had 6". There are two different pinion flanges for these diffs, but the tailshaft unis are the same, so it's no big drama if, for example, you put a 6" KE30 center in your 6" KE25 diff and the pinion is different.
Line 5:		Line 5:
	I am pretty sure you can put a 5.7" center into a 6" housing as well. The difference is in the ring gear only, not the carrier.		I am pretty sure you can put a 5.7" center into a 6" housing as well. The difference is in the ring gear only, not the carrier.

			= Borg Warner =
	~~'''~~Borg Warner~~'''~~

	KE5x and 7x Corollas in Australia had Borg Warner differentials, you can't change these centers as easily as in a Jap diff. KE5x have 6" ring gears, KE70s have 6.38". Apparently some KE1x cars had a Borg-Warner type diff as well, limited info available on these. KE20s have Borg Warner diffs from when they were made in Australia. All KE25s were imported, so they all have Jap diffs.		KE5x and 7x Corollas in Australia had Borg Warner differentials, you can't change these centers as easily as in a Jap diff. KE5x have 6" ring gears, KE70s have 6.38". Apparently some KE1x cars had a Borg-Warner type diff as well, limited info available on these. KE20s have Borg Warner diffs from when they were made in Australia. All KE25s were imported, so they all have Jap diffs.

	~~'''Comparison'''~~		= Comparision =

	So which is stronger? It really depends who you talk to. I personally would prefer a Jap diff, because even if you do destroy a center, it's bloody easy to change. I have seen both types of diff stand up to a decent amount of punishment (traffic light launches, weekend racetrack action, etc) behind a 96kw 4AG in a KE30.		So which is stronger? It really depends who you talk to. I personally would prefer a Jap diff, because even if you do destroy a center, it's bloody easy to change. I have seen both types of diff stand up to a decent amount of punishment (traffic light launches, weekend racetrack action, etc) behind a 96kw 4AG in a KE30.
Line 16:		Line 15:
	Both factory diffs take 1L of oil. A common trick is to park your car on a downhill slope, so you can put more oil in, useful if you have a worn center or are running thinner oil or are just giving your car a hard time.		Both factory diffs take 1L of oil. A common trick is to park your car on a downhill slope, so you can put more oil in, useful if you have a worn center or are running thinner oil or are just giving your car a hard time.

	~~'''~~Upgrades (different housing)~~'''~~		= Upgrades (different housing) =

	Common upgrades are a Celica/T18/Corona T series 6.7" diff (clutch-type TRD LSD centers available AU$1200 ex-Japan, Cusco and Kaaz also available for more money), R31 Skyline diff (factory 4-pinion clutch-type LSD and disc brakes), 8" Hilux diff (many ratios and LSD available, rumored to be quite heavy), Mitsubishi Scorpion (LSD and good ratios available out of some L300 vans, but rare), even live-axle Datsun 1600 (wagon).		Common upgrades are a Celica/T18/Corona T series 6.7" diff (clutch-type TRD LSD centers available AU$1200 ex-Japan, Cusco and Kaaz also available for more money), R31 Skyline diff (factory 4-pinion clutch-type LSD and disc brakes), 8" Hilux diff (many ratios and LSD available, rumored to be quite heavy), Mitsubishi Scorpion (LSD and good ratios available out of some L300 vans, but rare), even live-axle Datsun 1600 (wagon).
Line 22:		Line 21:
	Depending on the car you are putting it into (obviouly KE3x, 5x and 7x are a bit wider than KE1x and 2x) just about any bigger diff you want to use is going to have to be shortened and have leaf mounts welded onto it. If putting into a KE3x, 5x or 7x, then Celica/T18 diffs will fit without shortening, but with the correct mounts welded on. With any of these, you'll obviously need to do something about your tailshaft.		Depending on the car you are putting it into (obviouly KE3x, 5x and 7x are a bit wider than KE1x and 2x) just about any bigger diff you want to use is going to have to be shortened and have leaf mounts welded onto it. If putting into a KE3x, 5x or 7x, then Celica/T18 diffs will fit without shortening, but with the correct mounts welded on. With any of these, you'll obviously need to do something about your tailshaft.

	~~'''~~Limited Slip (without changing housing)~~'''~~		= Limited Slip (without changing housing) =

	Yes, there is a limited slip center that bolts into a Corolla housing, they were used in American KP Starlets. Sometimes you can find them in 4.1 or 4.3 ratio, more often than not they are the ridiculously low 2.928. Option1Garage on the Gold Coast import these for around $880. There are also people who "make" a sortof limited slip conversion, one such company in America is Phantom Grip. Tayell Automotive in Bentleigh East (Vic) advertise a similar service for around $250.		Yes, there is a limited slip center that bolts into a Corolla housing, they were used in American KP Starlets. Sometimes you can find them in 4.1 or 4.3 ratio, more often than not they are the ridiculously low 2.928. Option1Garage on the Gold Coast import these for around $880. There are also people who "make" a sortof limited slip conversion, one such company in America is Phantom Grip. Tayell Automotive in Bentleigh East (Vic) advertise a similar service for around $250.


	~~'''~~Ratios~~'''~~		= Ratios =

	Borg Warner diffs have the ratio written on a plate at the bottom of the diff center, facing the rear of the car.		Borg Warner diffs have the ratio written on a plate at the bottom of the diff center, facing the rear of the car.
	For Jap diffs, read the plate on your firewall, and relate to the list below. Most are U292 or U282, sometimes U209 or U211, rarely U231.		For Jap diffs, read the plate on your firewall, and relate to the list below. Most are U292 or U282, sometimes U209 or U211, rarely U231.

	~~from Helene & Matti's page~~		[http://www.geocities.com/MotorCity/Pit/9975/dataBySubject/AxleCodes.html From Helene & Matti's page]
	http://www.geocities.com/MotorCity/Pit/9975/dataBySubject/AxleCodes.html

	~~first~~ digit: ring gear diameter		First digit: ring gear diameter

	A 138mm		A 138mm
Line 147:		Line 145:
	5 4 yes		5 4 yes

			= Application guide =

	~~'''Application guide'''~~		Based on a table from [http://www.geocities.com/MotorCity/Pit/9975/dataBySubject/diffSize.html Helene & Matti's page]

	~~based~~ on a table from ~~Helene & Matti's page~~
	http://www.geocities.com/MotorCity/Pit/9975/dataBySubject/diffSize.html

	5.6" (X)		== 5.6" (X) ==
	Starlet KP61 81-82		Starlet KP61 81-82

	5.7" (B)		== 5.7" (B) ==
	Corolla KE1x		Corolla KE1x
	Corolla KE20,25,26 70-74		Corolla KE20,25,26 70-74

	6.0" (U)		== 6.0" (U) ==
	Corolla KE2x (some) KE30 77-79		Corolla KE2x (some) KE30 77-79
	Starlet KP61 83-84		Starlet KP61 83-84

	6.25" (C)		== 6.25" (C) ==
	Corolla TE21,27,28 (some) 71-74		Corolla TE21,27,28 (some) 71-74

	6.38" (S or R)		== 6.38" (S or R) ==
	Corolla TE21,27,28 (some) 71-74		Corolla TE21,27,28 (some) 71-74
	Corolla TE31,37,38,71,72,75 75-82		Corolla TE31,37,38,71,72,75 75-82
Line 173:		Line 169:
	Tercel AL10 80		Tercel AL10 80

	6.62" (D)		== 6.62" (D) ==
	Carina TA12 72-73		Carina TA12 72-73
	Corona RT62,72,63,73,83,93 70-72		Corona RT62,72,63,73,83,93 70-72
	Corolla TE27 (some) 74		Corolla TE27 (some) 74

	6.7" (T)		== 6.7" (T) ==
	Celica ALL 71-85 (RWD)		Celica ALL 71-85 (RWD)
	Corona RT85,95,104,114,105,115,119,134,32,34,36 72-82		Corona RT85,95,104,114,105,115,119,134,32,34,36 72-82
Line 186:		Line 182:


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