Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: majid38 on 22 December 2007, 07:11:28

Title: omega gearbox name and model
Post by: majid38 on 22 December 2007, 07:11:28

hello all
[size=22]HAPPY NEW YEAR...[/size][/b]
 who is know what is the gearbox name and model fitted in omega 20i 5speed 1998?
please link address to refrence if possible. this ZF or VOITH or GETRAG ? and what is the model name? AR25? AR28? OR OTHER. 8-)
REGARDS
majid38

Title: Re: omega gearbox name and model
Post by: Auto Addict on 22 December 2007, 07:18:50

Happy New Year to you to.

Is this an automatic you are talking about?

What country are you from?

Title: Re: omega gearbox name and model
Post by: TheBoy on 22 December 2007, 08:37:52

If its manual, it will likely be an R25, and I believe its a GM unit.  Bigger engined manuals use the R28, again, I believe its a GM unit.

Title: Re: omega gearbox name and model
Post by: TheBoy on 22 December 2007, 08:38:52

If its an auto (which I doubt, as the 5 speed autos came later), it will likely be a 4 speed AR25, which is also a GM unit.

Title: Re: omega gearbox name and model
Post by: Pitchfork on 22 December 2007, 09:48:20

Quote

If its an auto (which I doubt, as the 5 speed autos came later), it will likely be a 4 speed AR25, which is also a GM unit.

I thought that the AR25 was a ZF unit?

Title: Re: omega gearbox name and model
Post by: Marks DTM Calib on 22 December 2007, 10:17:42

AR25 (all engines except 3.0) and AR35 (3.0 and 3.2 only) auto boxes are GM (4L30E)........R25 (all engines except 3.0 and 3.2) and R28 (3.0 only) manual boxes are apparantly ZF

Title: Re: omega gearbox name and model
Post by: majid38 on 22 December 2007, 10:55:39

[size=14][/size]Thanks for coordinate.i'm from Iran and my car have a 5speed manual gearbox. i think R25 is correct answer but i couldn't find any info from GM or ZF ,even i searched Voith and Alison but i don,t know this unit where was made? :question

Title: Re: omega gearbox name and model
Post by: TheBoy on 22 December 2007, 11:09:47

Quote

AR25 (all engines except 3.0) and AR35 (3.0 and 3.2 only) auto boxes are GM (4L30E)........R25 (all engines except 3.0 and 3.2) and R28 (3.0 only) manual boxes are apparantly ZF

Thanks for that :y

Presumably the 3.2 manual as fitted to plods is also R28?

Know what the tractor manuals use, R25 or R28?

Title: Re: omega gearbox name and model
Post by: majid38 on 22 December 2007, 13:23:23

[size=14][/size]I DON'T KNOW?  :o