Results 1 to 6 of 6

Thread: astra mk4 c20let gear box issues

  
  1. #1
    Status
    Offline
    shaun_astra's Avatar
    AOC Newbie
    Join Date
    Nov 2006
    Posts
    55
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)

    astra mk4 c20let gear box issues

    ive had my c20let in now for 6 months and the standard f23 box diff is making noises so i need to look at whats the best thing 1 for it but ive bin told to use a z20let 1 as 5 th gear is longer than mine as i could only do 135mph flat out in it an all i can find on my box is a sc with a bar code is this the ratio or where can i find it and whats the code on a z20let box

  2. #2
    Status
    Offline
    Andy_888's Avatar
    AOC Obsessed
    Join Date
    Mar 2007
    Posts
    4,465
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    sc is off an x20xev - so not ratio'd for your power out put at all.

    Could either get an f28 conversion - 6 speeder then
    or get a TR idented f23
    888 Coupe - The original and best!
    For sale - 1x Kidney, Slightly abused by alcohol
    £45,000 or Part Ex for VXR8 Bathurst-S

  3. #3
    Status
    Offline
    shaun_astra's Avatar
    AOC Newbie
    Join Date
    Nov 2006
    Posts
    55
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    a mate of mine works at a scrap yard and has got a z20let box there and its mine for £100 so should be recieveig it this wk when they take it out

  4. #4
    Status
    Offline
    MikeWarner's Avatar
    AOC Obsessed
    Join Date
    Sep 2004
    Posts
    3,167
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    How do you know it is the diff? You know all F23s rattle like bastids right?
    8 Astras in a row! Can Anyone Beat That?
    Star Silver Astra Sporthatch SRi XP 1.9 CDTi (150PS)
    A Vauxhall site about Vauxhalls.

  5. #5
    Status
    Offline
    bucky's Avatar
    AOC Obsessed
    Join Date
    May 2005
    Posts
    1,179
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    135 from an f23 in a mk4 c20let?
    had a 2.0dti f23 in my c20xe mk4 and went past 140 mph
    now using a 2.2 f23 in my c20let mk4 and again goes past 140mph.
    didnt know there were any other f23 boxes that fit mk4's?
    changing the diff is very simple, theres about 8 bolts to undo then lock the input shaft with an old clutch centre and undo the bigger bolt in the middle, split the casing and lift the diff out. easy peasy.

  6. #6
    Status
    Offline
    shaun_astra's Avatar
    AOC Newbie
    Join Date
    Nov 2006
    Posts
    55
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    put the box tr in now and its a lot better lower revs at speed cheap box really £100 when i got quoted £350 for 1 at some where else

Similar Threads

  1. help with gear issues
    By colin1484 in forum Diesel Engines inc. Transmissions
    Replies: 8
    Last Post: 23-08-2014, 21:32
  2. f23 gear selector - grease/lubricant - gear select issues
    By spike in forum Astra Discussion & Chat
    Replies: 1
    Last Post: 02-03-2013, 19:16
  3. Gear box issues
    By Cadairmanuk in forum Astra Discussion & Chat
    Replies: 3
    Last Post: 09-08-2012, 16:02

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •