speedo drive for zf gear box
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    Rods 'n' Sods Junkie
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    speedo drive for zf gear box

    ok I have posted this be fore I know but I thought I would give it another go....
    I have just fitted a Rover V8 to my model A pick up & it has a zf4 hp22 4 speed auto as fitted to ambulances & Police riot vans...
    all works as it should apart from the speedo drive never came with the gear box & as LDV have gone bust I can't buy a new one....
    I did make one from an old Morris Marina one but it was not right & only lasted a few days :O(

    so has anyone got one or know the best place to find one? I keep an eye on ebay & know 1 will turn up at some point but wanted to know if anyone knows if a manual G'box one would fit etc....

    Any help would be good thanks....

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    Semi Proffessional Prat sidspop's Avatar
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    Rods 'n' Sods Junkie
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    Quote Originally Posted by sidspop View Post
    Thanks for that but they only do cables not the drive......
    I need the whole gear drive that fits in the tail shaft of the gearbox! problem is they only fitted the gearbox to Police/ambulance/forces vans so are a bit hard to find... I just wondered if someone knows if a 5 speed drive would fit in the hole & work maybe???

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    Official RnS Addict BlueGenePop's Avatar
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    My old Granada had a Rover/ZF set up and I loved i,. I had the same speedo drive problem because my g/box was from a Jag and apearently they take the speedo drive off the axle. I used an electronic speedo, (Cearbont?or something like that) which was programable for pulses per mile, and a pickup on a bracket to sense the bolts in the c/v joint going past it with limited succes. I think a toothed disc say between propshaft and diff would have worked better
    I also the same problem with BGP2 Reid powerglide case do not have speedo drives either, I think I have a choice here of a GPS speedo or fitting a magnet ring to the prop yoke, and driving the speedo from the data logger
    Hope this helps
    Counting miles counting tears
    Twisted road shifting gears
    Year after year, It's all or nothing

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    I know the electronic speedo's may work I had a quad bike that had a magnet on the rear brake disc & this was used with a pick up running the speedo....

    Thing is the gear box has a cable speedo hole in the rear tail shaft & when I got the gearbox it came with all I needed apart from the speedo drive!!!!
    I just need to find the right one or one that works or I can make work.....

    The 4 speed auto works so much better then the old 3 speed & with 4.10:1 posi gears & 14" wheels it's quicker then a 3.5 Rover should be & works better then the Mk1 Ford Transit I had with a 3.5 v8 & that had a 3.9:1 Zodiac diff fitted to the stock Transit axle...

    I may just use a Tom Tom until I find the right parts but anyone wanting a better Auto box for a Rover v8 may want to look at the ZF4 HP22 & as you say the Jag one would fit just have to sort the speedo problem... mine being from a heavy truck it seems to shift harder then a stock car one or maybe it's the low gearing but foot to the floor it changes hard like it has a shift kit fitted.... well happy & only cost £300.00 from e-bay (I rebuilt it & fitted new torque converter from Range Rover)


    Just found this on ebay 190774073273 Item number: boxes seem to be fitted to Volvo's BMW's & Maserati's the Range Rover ones have a funny arse end with 4X4 going on....
    Last edited by rusty39Austin; 20-02-2013 at 20:30.

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    Official RnS Addict BlueGenePop's Avatar
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    Yes it is a good combination of eng/box, my engine was the 4.6 with the intermeadiate front cover fited so I had a dissy, a carb, the serpentine belt, and the good crank driven oil pump. The gearbox I had to swapout the bell housing for the R/Rover one. It had power and torque to spare, did 25 mpg, still did 20mpg towing racecar. And the look on the 2 chavs faces the day they were out dragged, by a nutter towing a car on a trailer was priceless

    PS High line presure/ firm shifts may be a feature of this box (later ones with the electronic shift have a sports mode), I had trouble with it keep blowing off cooler lines until I went to AN fittings.
    Last edited by BlueGenePop; 20-02-2013 at 20:40.
    Counting miles counting tears
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    ya had a line blow off & oil my chassis for me last week now fitted better hose/clips & double clips on all lines/joins.....

    seems good on gas as runs along at 50mph just above tick over & 70mph is just a wee bit more pressure & then back off a bit! but the truck is glass, open fender & chopped so very light...

    like I say it's used as my run around so needs to be affordable to drive & be able to haul rubbish to the tip, tow cars about & be well A Pick up.....
    A real good gearbox to use for any Rover V8 & I have seen it used on a Daimler V8 also & that's a motor that needs a better Auto box....

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    top cat is offline
    Sorry to hijack the thread but I have just bought a 3.9efi from a Range Rover for my Pop project, it came with a FREE zf 'box. My question is; can I take the 4X4 transfer box off and change it for a conventional 2wd. back end, or is the box/main shaft completely different? If so where can I get one?

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    when you take the transfer case off the back you will have a long shaft sticking out the back & no tails shaft casing or threaded end to fit a drive flange, so I would say flog the 4x4 gearbox & buy a Jag/Volvo one from ebay & then deal with the speedo drive thing...

    you may be lucky like I was to find an LDV one that has a mechanical drive (or not)...

    I used the 3.5 Range Rover motor & used some +30 9.75:1 pistons Edelbrock 4 barrel & the old cast iron exhaust manifolds/engine mounts & I have a single gearbox mounting at the back & used another old type round Rover engine mounting...

    BTW you will need to keep the torque converter drive plate & spacers/converters etc I do have a spare set on the shelf.. & when fitting the torque converter you need to take care & put the gear box on end first then drop the TC into place & twist/giggle it about until it drops then drops again THEN measure the distance from flat part of bell housing to flex plate (check on google as distance can differ depending on gearbox/tc combo yuo have) if you just do the bots up you will bust the front pump & shag the gearbox.....
    also get the gearbox oil level right I had to cut & bend mine to fit & then make a dipstick from a spring from a speedo cable fit it to the right amount check it & make new marks...

  12. #10
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    Thanks for the info Rusty. Anybody want a ZF box for a 4x4? No hurry but on the lookout for 4speed zf then.

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