Gm F25 Gearbox

  1. Welcome to Saabscene – General discussion forum for Saab

    Welcome to Saabscene - a website dedicated to all things Saab.

    You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, Join Saabscene today!
     
Results 1 to 3 of 3

Thread: Gm F25 Gearbox

  1. #1
    Turbo Talker
    Join Date
    Feb 2002
    Location
    linlithgow
    Posts
    4,215
    which models used this gearbox ?

    I have a plan.....

  2. Remove Advertisements
    SaabScene.com
    Advertisements
     

  3. #2
    Saab Newbie
    Join Date
    Jan 2007
    Location
    Edinburgh
    Posts
    12
    i'm sure my V6 SRI vectra had this model in it.

  4. #3
    Mega Motor Mouth saabman's Avatar
    Join Date
    Jan 2002
    Location
    Blackpool
    Posts
    3,172
    Yes the 2.5l Vectras and Calibras use this box :smile:

    Just found this on the net,

    The F25 manual transmission was fitted to many vehicles in the European General Motors production line up including the Opel Calibra. It was a 5 speed transmission with the following configuration:

    Clutch Diameter 9.0 inches
    1st Gear Ratio 3.38:1
    2nd Gear Ratio 1.76:1
    3rd Gear Ratio 1.12:1
    4th Gear Ratio 0.89:1
    5th Gear Ratio 0.77:1
    Reverse Gear Ratio 3.17:1
    Final Drive Ratio 3.82:1



    There have been many references to the numbering designation that Vauxhall elected to utilse for gearboxes, one of the more common arguments is that it refers to the lb.ft torque capacity of the gearbox, in this case being a 250 lb.ft torque limit. Other arguments include that it is simply related to the engine size (the F25 gearbox was often fitted to 2.5L engine vehicles).

    This argument, that is engine size is the justification for the numbering could be disputed as the Opel Vectra B with the 2.6L V6 engine was infact fitted with an F23 transmission.


    As an example the F25 transmission was fitted to the Opel Calibra 2.5L models (C25XE and X25XE engined models)

  5. Remove Advertisements
    SaabScene.com
    Advertisements
     

Similar Threads

  1. A gearbox, a gearbox, my kingdom for a gearbox....
    By Great_Bu in forum Saab 9000 (1984 - 1998)
    Replies: 52
    Last Post: 03-30-2006, 11:15 AM
  2. gearbox linkage to gearbox joiner block.
    By kiamaian in forum Saab 9000 (1984 - 1998)
    Replies: 2
    Last Post: 10-22-2004, 10:14 AM
  3. gearbox linkage to gearbox joiner block.
    By kiamaian in forum Saab 9000 (1984 - 1998)
    Replies: 2
    Last Post: 10-22-2004, 10:14 AM
  4. Gearbox Oil
    By metaxu in forum Classic Saab 9-5 (1997 - 2009)
    Replies: 0
    Last Post: 09-06-2004, 05:00 PM
  5. 900 Gearbox
    By ron in forum Classic Saab 9-3 & GM900 (1994 - 2002)/Conv ( -2003)
    Replies: 2
    Last Post: 09-20-2001, 12:30 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBadvanced CMPS v4.1.2