Can anyone tell me what colour speedo drive gear I need for a 3.08 ratio diff ?
speedo drive gear
Started by
rtorana1
, Apr 03 2014 08:45 PM
13 replies to this topic
#1
rtorana1
-
- Members
-
- 249 posts
Forum Member
- Name:ray
- Location:sydney
- Car:lj
- Joined: 16-March 14
Posted 03 April 2014 - 08:45 PM
#3
_DJH308_
_DJH308_
-
- Guests
Posted 03 April 2014 - 09:39 PM
i have an lx torana with 3.08 diff, im pretty sure the cog is green from memory...
#4
lx308
-
- Members
-
- 2,843 posts
Lotsa Posts!
- Name:Tony
- Location:Australind
- Car:Nuffin. Goin touring.
- Joined: 25-March 07
#5
S pack
-
- Members
-
- 15,735 posts
Scrivet Counter
- Name:Dave
- Location:Luggage Point
- Car:73 LJ
- Joined: 25-January 10
Posted 03 April 2014 - 10:18 PM
For your LJ with 13" rims and tyres?
22 tooth gear was the factory fitment for 3.08 ratio diff.
http://www.rarespare...?product=SG1009
Edited by S pack, 03 April 2014 - 10:19 PM.
#6
N/A-PWR
-
- Members
-
- 9,639 posts
CABIN ENGINE CONTROLS GALORE
- Name:Dave I
- Location:Wooroloo, 65km's East of Perth
- Car:'1969' LC RAT TORANA
- Joined: 08-December 12
Posted 03 April 2014 - 11:02 PM
and here is the Calculator again:-
http://codes.oldholden.com/Speedo/
Dave is right, when you enter, 205/60/13 x White M20 gearbox 8 tooth gear x 3.08:1 Diff Ratio x 22 tooth Speedo gear (Dark Blue) = 98km/h in 4th
Edited by TORYPOWER, 03 April 2014 - 11:10 PM.
#7
_judgelj_
_judgelj_
-
- Guests
Posted 04 April 2014 - 07:43 AM
How do you use that calc im so confused? For me its 205/60/13, M20 and 3.36. What is the diff between gearbox gear and driven gear? Do you select them or are they auto selected? I have a red/pink speedo gear in my gearbox
#8
S pack
-
- Members
-
- 15,735 posts
Scrivet Counter
- Name:Dave
- Location:Luggage Point
- Car:73 LJ
- Joined: 25-January 10
Posted 04 April 2014 - 08:07 AM
Jacob, the factory driven gear for your combination is 24 tooth Yellow with a white drive gear on the mainshaft.
#9
_judgelj_
_judgelj_
-
- Guests
Posted 04 April 2014 - 01:04 PM
Thats what im confused about, dave, which is which gear? Which one drives the speedo and where is this main gear?
Thanks
#10
S pack
-
- Members
-
- 15,735 posts
Scrivet Counter
- Name:Dave
- Location:Luggage Point
- Car:73 LJ
- Joined: 25-January 10
Posted 04 April 2014 - 02:38 PM
Both gears drive the speedo cable.
The driven gear is the one that fits onto the end of the speedo cable and is inserted into the side of the gearbox extension housing.
The drive gear is mounted onto the gearbox mainshaft.
When you change out a diff ratio you have to change the driven gear to maintain speedometer accuracy. People typically call it the speedo drive gear because it is on the end of the speedo cable.
Edited by S pack, 04 April 2014 - 02:39 PM.
#12
S pack
-
- Members
-
- 15,735 posts
Scrivet Counter
- Name:Dave
- Location:Luggage Point
- Car:73 LJ
- Joined: 25-January 10
Posted 04 April 2014 - 03:13 PM
Remove the extension housing from the gearbox.
#13
N/A-PWR
-
- Members
-
- 9,639 posts
CABIN ENGINE CONTROLS GALORE
- Name:Dave I
- Location:Wooroloo, 65km's East of Perth
- Car:'1969' LC RAT TORANA
- Joined: 08-December 12
Posted 04 April 2014 - 03:34 PM
Here you Go Dammit:-
http://www.gmh-toran...n-your-speedos/
Thank's to Rob for doing this for Us. Dave I
Very informative, I must ad, must of taken Rob ages to do
Edited by TORYPOWER, 04 April 2014 - 03:38 PM.
1 user(s) are reading this topic
0 members, 1 guests, 0 anonymous users
