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Thread: welding S series diff

  1. #1
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    Default welding S series diff

    hey guys iv done a serch but found nothing

    no i know how to lock a diff etc but i was told that the s series is VERY weak and will brake straight away.

    but then iv also be told that there okay

    could some one clear it up for me???

    thanks Ryan

  2. #2
    Senior Member bones's Avatar
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    who knows could last a week or a year , do it and find out

  3. #3
    Glenn ke_70's Avatar
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    if you've got a borgy use that.

    both are weak and probley bound to break at some stage. borgys are way more common than s series diffs. so replacment axels/centres will be cheap and very easy to sorce.
    so dont go out of you way to put an s series in.

  4. #4
    Senior Member MR86ER's Avatar
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    i have a way of doing it which last pretty long still havent broken mine pm me for details
    cancling your subscription as a humanoid

  5. #5
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    well diffs now welded seems to be okay i took it out last night n today for a run
    no weird noises or shakes

    we will see how long it lasts

  6. #6
    Senior Member MR86ER's Avatar
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    if it doesnt hold get a 5ml steel plate drill hole in center for axle to slide through then angle the pate so all 4 corners touch the spider gears and weld the corners of the plate to the gears , got that tip off a guy who builds and races 9sec rotaries strongest way he rekons
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  7. #7
    Senior Member Hen may possibly be a nut's Avatar
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    The problem with welding S series diffs is that there is almost no room to get into the spider gears. Just preheat the whole centre then weld as much of the spider gears as you can through the tiny holes.

    I found with welded S (and T) series that things would last ok drifting if I used 205/50 R15 tyres or smaller. Any larger than that and I'd break axles very quickly.

  8. #8
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    when i welded it i was able to get a ew good weld on the gears the i put m10 by 30 mm bolts in and welded it all up
    in all 4 sun gear holes
    im sure the welds will not snap im more worryed about snapping axels or ripping teeth of the crown

  9. #9
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    yee thats okay as im runnin 205/40/14

  10. #10
    Senior Member MR86ER's Avatar
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    fill it with led
    cancling your subscription as a humanoid

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