Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: djm1964 on 11 April 2009, 22:34:39

Title: Ar35 & Ar 25
Post by: djm1964 on 11 April 2009, 22:34:39

Whats the difference please between the two ? And which would I likely have in a 98 2.5 please.

Tahnks in advance

Dave :y

Title: Re: Ar35 & Ar 25
Post by: albitz on 11 April 2009, 22:39:21

The AR35 has more beefy internals(not sure which bits exactly)so is a stronger and more durable box.
My 2.5 has the AR25,afaik all 2.5,s had the AR25,I could be wrong though. :y

Title: Re: Ar35 & Ar 25
Post by: mike213735 on 11 April 2009, 22:45:18

Quote

The AR35 has more beefy internals(not sure which bits exactly)so is a stronger and more durable box.
My 2.5 has the AR25,afaik all 2.5,s had the AR25,I could be wrong though. :y

I agree with you, but I am sure an expert will be along soon.

I know someone that may have an AR25 for sale, if you're interested? Are you selling it Rob?

Mike

Title: Re: Ar35 & Ar 25
Post by: RobseyMV6 on 11 April 2009, 23:00:38

Maybe kept for others in family Mike but 2.5's are fitted with AR25, 3.0 and 3.2's AR35 to take the greater power given by engine...

Title: Re: Ar35 & Ar 25
Post by: HerefordElite on 11 April 2009, 23:53:58

AR25 will take 250Nm of torque
AR35 will take 350Nm of torque

Hence AR25 in 2.5V6 (and 2.0's)  and AR35 in 3.0V6 ;)

Title: Re: Ar35 & Ar 25
Post by: MutantCav on 12 April 2009, 09:07:24

and you only really need to upgrade the box to an AR35 if you upgrade the engine or if you had a TD and wanted to chip it...

Title: Re: Ar35 & Ar 25
Post by: djm1964 on 12 April 2009, 10:46:42

Thank you all very much for the advice .

Take care

Dave :y

Title: Re: Ar35 & Ar 25
Post by: TheBoy on 12 April 2009, 13:27:36

As stated, AR35 is stronger, having more clutch plates. Only fitted to 3.0/3.2 petrols.  All other models use AR25, including ALL Vauxhall 2.5TD, despite the rumours. Opel 2.5 TDs also use AR25 up until around 2001, when they started to use a new 5 speed varient.