v8ian
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Mar 29, 2014 17:13:45 GMT
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I need to make a small offset drive so I can reposition a propshaft to gain clearance. I need to move it across 9" What cars use a chain or belt to transfer drive to the gearbox, or a stand alone drop box which will do the same, the only car I can think of that used a chain transfer was the AC ME3000, I would really like a 1:1 ratio too, Not asking too much am I  ?? |
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Last Edit: Mar 29, 2014 17:15:14 GMT by v8ian
Atmo V8 Power . No slicks , No gas + No bits missing . Doing it in style.
Austin A35van, very different------- but still doing it in style, going to be a funmoble
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Mar 29, 2014 17:27:14 GMT
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Whats it for?
Some fork lifts/ Sidelifts use a chain drive transfer box.
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Mar 29, 2014 17:35:41 GMT
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I don't know if this is of use but the 4x4 sieras use a chain drive transfer case to provide the torque split and the forward drive.
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v8ian
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Mar 29, 2014 17:43:13 GMT
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In my quest to build a better mousetrap I offered up my preferred choice of engine, it sits in there better than I imagined, very happy with how it looks, that was until I cut back the floor to offer up the prop,  my prop needs ideally from the centre line of the clutch cover and 3"-4" below it   |
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Atmo V8 Power . No slicks , No gas + No bits missing . Doing it in style.
Austin A35van, very different------- but still doing it in style, going to be a funmoble
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Mar 29, 2014 18:20:31 GMT
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Hi, Saab 99/900, Princess 'wedge', use chains from clutch to g/box. Later classic Range Rovers and on use chains from Main g/box to transfer box. The only thing is they are used on heavy cars with reasonable power, especially the R/R which is after the main box. So are robustly built and will sap power. None are self contained but you could extract the chains to use. Of the ones I have listed the R/R would probably be the cheapest route because they are reliable and so don't have a high secondhand value.
Colin
P.S. just remembered, Suzuki SJ have a small self contained transfer box which is quite compact and could be utilised as you have limited space although I think it is gears.
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Last Edit: Mar 29, 2014 18:26:59 GMT by colnerov
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scimjim
Club Retro Rides Member
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Club RR Member Number: 8
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What Cars use???????scimjim
@scimjim
Club Retro Rides Member 8
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Mar 29, 2014 18:55:26 GMT
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4wd transfer boxes have the offset output flange facing forward - might be possible to modify?
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Mar 29, 2014 19:19:01 GMT
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Hi, output flanges face both forwards and rearwards.
Colin
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Mar 29, 2014 20:27:36 GMT
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 For ease of manufacture and compactness I'd probably be looking at something like this. The chains in the transfer boxes are quite special and run much tighter tolerances than normal cycle chains to keep noise down and reliability up. My 2p. EDIT: That's a Frazer Nash btw |
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Last Edit: Mar 29, 2014 20:28:02 GMT by metroman
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Mar 29, 2014 20:35:27 GMT
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Cadillac used chain/belt drive to get 8 litre V8s working the front wheels.  |
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I've got Rovers.
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Mar 29, 2014 20:45:04 GMT
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that cadillac setup looks very much like saab 99 - early ones used drop gears then later stronger tripple chain drive.
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'98 e36 316i lux
'97 mx5 harvard
'87 Saab 900 T16s
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suzuki sj transfer box gives you the offset you would need has a flange on both input and outputs just leave it in 2wd which is to the rear don't bother with a front prop using one of these would give you the option of slipping it in low range for super fast 0-60
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v8ian
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The Suzuki box does offer a lovely option, especially with the choice of ranges, unfortunately the box has a 1.5:1 output ratio which will cock up my ratios, |
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Last Edit: Mar 30, 2014 8:59:36 GMT by v8ian
Atmo V8 Power . No slicks , No gas + No bits missing . Doing it in style.
Austin A35van, very different------- but still doing it in style, going to be a funmoble
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umm wonder if gears can be swapped they do it to make the low box really low maybe high range can also be altered
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Pulsar gtir transfer box |
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Mar 30, 2014 10:01:29 GMT
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I was thinking two bike drive shafts (shaft driven bikes like BMW R75) mated together. Should work? Going p.e. 3:1 --> 1:3 using one final drive as input and the other rotated 180° as output. Should not consume much space and safe weight over a car transfere box? Just my pre-second-coffee-thoughts.  |
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v8ian
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Mar 30, 2014 11:02:14 GMT
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Atmo V8 Power . No slicks , No gas + No bits missing . Doing it in style.
Austin A35van, very different------- but still doing it in style, going to be a funmoble
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Mar 30, 2014 11:50:12 GMT
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A mate had a Honda 650 Deville bevel box that was removed from a nearly new bike as he had it turned into a trike. I tried selling on eBay for him with no takers so reckon it could be had cheaply. Personally I'd look at Harley primary belt drive system - mount a matching pair of drive flanges onto pillow block bearings and use a toothed belt. Quick pic to give an idea what a Harley system looks like -  Paul H |
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v8ian
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Mar 30, 2014 14:43:00 GMT
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Does it need to be a primary drive?? or that big, its not going to be engine to gearbox its gearbox to prop, It could possibly be Harley Secondary drive belt. perhaps a 30mm wide, 8mm pitch, I would need to bring the drive further out from where the chain would normally be, a stub shaft would be needed, or possibly a sensibly sizes star drive cplg mounted off the gearbox, that would help with 2 issues-- the need to have a very tight tolerance to the support bearing that I would need and also give me a cush drive,
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Atmo V8 Power . No slicks , No gas + No bits missing . Doing it in style.
Austin A35van, very different------- but still doing it in style, going to be a funmoble
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Mar 30, 2014 15:10:51 GMT
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Why not simply stick with chain drive ? A quad rear axle would provide a sprocket mount as well as HD bearing in a carrier. You'd need to cut the axle down flush on sprocket side and have blank side resplined to take prop flange.
Paul H
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?? 
my prop needs ideally from the centre line of the clutch cover and 3"-4" below it
