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Thread: RS Diff price

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    Mechanic DANGERDAVE80's Avatar

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    RS Diff price

    Hi folks

    Looking for some advice really, Ive got an RS 3:54 diff and im thinking of selling it to fund an LSD, anyone got an idea what sort of price i should be looking for it. I had thought somewhere between £200-£300

    Cheers

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    Re: RS Diff price

    Sounds about right, depends on condition of course. I just sold a minter for a bit more than that.

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    Mechanic DANGERDAVE80's Avatar

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    Re: RS Diff price

    Thanks mate, its in good nick as it recently came out my car but i swapped it with a 4:1

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    Bodger

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    Re: RS Diff price

    I bought my 3.54:1 in 1988 for £25, rebuilt it for about £15. Couldn’t imagine it is worth £300 now. Still a new, old stock, Mexico wing sells for £600, I bought my pair for £120 in 1992. Amazing the price inflation. I guess stuff is worth whatever folk will pay!
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    Racer Decade Plus User wildo105e's Avatar

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    Re: RS Diff price

    Quote Originally Posted by Frenchenstein View Post
    I bought my 3.54:1 in 1988 for £25, rebuilt it for about £15. Couldn’t imagine it is worth £300 now. Still a new, old stock, Mexico wing sells for £600, I bought my pair for £120 in 1992. Amazing the price inflation. I guess stuff is worth whatever folk will pay!
    believe it. It is all about us, get your 3.54 diff and give some rally style and bang it breaks so you buy another for £25 then break it again buy another for £30 this time, after 40 years of this and the supply starts dwindle. Supply and demand.

    i bought one around 12 years ago for £115 so that show you the rate of increase.

    They are now being re-manufactured but people always prefer the the genuine ones.

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    Mechanic DANGERDAVE80's Avatar

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    Re: RS Diff price

    I know, ive even noticed i big increase in parts since i bought the car in 2008. I had my Mk1 in 2004 and even then, things were a-lot cheaper!

    Ive also stuck the odd thing on ebay at 99p and watched the price go mental! I put a glove box on recently and it went for £95! I bought it at Santa Pod about 10 years ago for £5

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    Bodger

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    Re: RS Diff price

    Quote Originally Posted by wildo105e View Post
    believe it. It is all about us, get your 3.54 diff and give some rally style and bang it breaks so you buy another for £25 then break it again buy another for £30 this time, after 40 years of this and the supply starts dwindle. Supply and demand.

    i bought one around 12 years ago for £115 so that show you the rate of increase.

    They are now being re-manufactured but people always prefer the the genuine ones.


    Is Timken remanufacturing the new diff assemblies?
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    Racer Decade Plus User wildo105e's Avatar

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    RS Diff price

    392181860033 have a look at this eBay item. Looks like it will hit a good price


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    Racer Decade Plus User wildo105e's Avatar

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    Re: RS Diff price

    finish £304 so that gives you a clue

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    Mechanic DANGERDAVE80's Avatar

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    Re: RS Diff price

    Cheers mate, id be happy with that

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    Re: RS Diff price

    What I would like to find is a decent mechanic who can rebuild them properly, I've got a few escorts and capris and have about 4 diffs I want rebuilt .I've taken two to two different diffs to two different garages who have done a bad job of rebuild despite having a full timken bearing and Crush washer set .
    I just need a decent bloke to set one up, I would appreciate any recommendations

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    Racer Decade Plus User wildo105e's Avatar

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    RS Diff price

    Oldskoolrules I think is the user Id seems to have good rep. I was going to go to him in the near future to discuss.

    Or look up arrow engineering on the web same guy 👍


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    Bodger

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    RS Diff price

    Recomended...dealt with him a couple of times. The last time to rebuild and set up my 3.5 diff. Very helpful 👍

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    Bodger

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    Re: RS Diff price

    I have the tools to set up your differential (cap spread, backlash, pinion pre-load) but only if you are replacing the bearings and using the existing crown wheel and pinion; as this operation only needs the EXISTING “depth of mesh” washer/shim.

    However fitting a NEW MATCHED CROWN WHEEL and PINION requires MORE EXTENSIVE tooling to measure for the correct size “depth of mesh” washer/shim required for a NEW gear set. I don’t have this tooling.
    At the garage; as usual !

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    Bodger

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    Re: RS Diff price

    Quote Originally Posted by parsleycapri View Post
    What I would like to find is a decent mechanic who can rebuild them properly, I've got a few escorts and capris and have about 4 diffs I want rebuilt .I've taken two to two different diffs to two different garages who have done a bad job of rebuild despite having a full timken bearing and Crush washer set .
    I just need a decent bloke to set one up, I would appreciate any recommendations
    I have the tools to set up your differential (cap spread, backlash, pinion pre-load) but only if you are replacing the bearings and using the existing crown wheel and pinion; as this operation only needs the EXISTING “depth of mesh” washer/shim.

    However fitting a NEW MATCHED CROWN WHEEL and PINION requires MORE EXTENSIVE tooling to measure for the correct size “depth of mesh” washer/shim required for a NEW gear set. I don’t have this tooling.
    At the garage; as usual !

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    Re: RS Diff price

    Quote Originally Posted by Frenchenstein View Post
    I have the tools to set up your differential (cap spread, backlash, pinion pre-load) but only if you are replacing the bearings and using the existing crown wheel and pinion; as this operation only needs the EXISTING “depth of mesh” washer/shim.

    However fitting a NEW MATCHED CROWN WHEEL and PINION requires MORE EXTENSIVE tooling to measure for the correct size “depth of mesh” washer/shim required for a NEW gear set. I don’t have this tooling.
    This isn't strictly correct - replacement bearings from different manufacturers are not made to the same tolerances - different brands require different shims as they can - and do - show different installed heights.
    A proper depth of mesh gauge shows these differences.
    Also, worn bearings change where the contact patch has been, putting new bearings in - even if they have the same tolerance as the old bearing - can affect where the contact happens.

    Not to mention a diff that has been running out of mesh due to wear may need re-setting properly.
    A lot of setting diffs up is reading the contact patch before disassembly and working out what needs doing, if anything, from there.
    Last edited by HonkyWhiteTrash; 30-01-2019 at 15:23.

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    Bodger

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    Re: RS Diff price

    Quote Originally Posted by HonkyWhiteTrash View Post
    This isn't strictly correct - replacement bearings from different manufacturers are not made to the same tolerances - different brands require different shims as they can - and do - show different installed heights.
    A proper depth of mesh gauge shows these differences.
    Also, worn bearings change where the contact patch has been, putting new bearings in - even if they have the same tolerance as the old bearing - can affect where the contact happens.

    Not to mention a diff that has been running out of mesh due to wear may need re-setting properly.
    A lot of setting diffs up is reading the contact patch before disassembly and working out what needs doing, if anything, from there.
    Yo dude,

    Having successfully completed T01 Ford Transmission course at Daventry in the nineteen eighties (I could probably lay my hands on my original notes today) and renewed many bearing sets on the Timken axle, with the original Ford tooling I have, and with bearings of different, reputable makes, I stand by my word. My own 3.54:1 is still utterly silent some four thousand or so miles after rebuild. Salisbury diffs are another matter though, all shimmed, they can be a c%#t.

    Loving your post though.
    At the garage; as usual !

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    Re: RS Diff price

    Quote Originally Posted by Frenchenstein View Post
    Yo dude,

    Having successfully completed T01 Ford Transmission course at Daventry in the nineteen eighties (I could probably lay my hands on my original notes today) and renewed many bearing sets on the Timken axle, with the original Ford tooling I have, and with bearings of different, reputable makes, I stand by my word. My own 3.54:1 is still utterly silent some four thousand or so miles after rebuild. Salisbury diffs are another matter though, all shimmed, they can be a c%#t.

    Loving your post though.
    Each to their own! - I've got the original Churchill English diff depth-of-mesh setting dummy pinion and rocker gauge as used in Ford workshops - I've checked plenty, and I build English diffs regularly with those tools : the depth of mesh gauges show a difference in bearings - I never build a diff without using the gauges (the pictured gauges are mine).
    My knowledge comes from a Ford Master Technician who was a transmission specialist and also attended courses at Ford establishments.



    Oldskoolrools does English as well as Salisbury (Atlas) axles and is well-known for them if anyone is looking for one to be set-up.
    Last edited by HonkyWhiteTrash; 06-02-2019 at 15:44.

  19. #19
    Bodger

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    Re: RS Diff price

    Fair play dude. It’s the depth of mesh set-up with the dummy pinion etc that don’t have.
    At the garage; as usual !

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