 | Home > Maintenance & Modifications > Reciver hitch height questions |
 
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17388   
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Do you mean "receiver hitch" or do you really mean "Dixon Bate adjustable hitch"? They're radically different things, and your question doesn't really make sense for a receiver hitch.
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4th Feb 2018 1:53pm |
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| Devon-Rover Member Since: 22 Jan 2015 Location: South Devon Posts: 916 
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I have a Dixon bate adjustable drop hitch and it does more ploughing than towing, I need someone with the 2 inch receiver hitch to measure their tow ball height when they have the associated drop hitch on.
 Also can be found on Fb, Ytube, Insta & Twitter @4WDSouthwest |
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4th Feb 2018 2:10pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17388
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Aha, I understand now! No measurements available at present but I do have these pictures of mine which may be of interest.
With a coupling fitted with the bracket in the photo 2 orientation it is way lower than when I had the "ground anchor" fitted.  Click image to enlarge Click image to enlarge Click image to enlarge |
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4th Feb 2018 2:30pm |
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| Devon-Rover Member Since: 22 Jan 2015 Location: South Devon Posts: 916
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Thanks Blackwolf.
So the theory works out just need to find a dude with the actual measurements. The box van requires the lowest setting and to keep it stable I can't really allow it to get any more nose height.  Also can be found on Fb, Ytube, Insta & Twitter @4WDSouthwest |
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5th Feb 2018 8:16am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17388
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You could probably get a pretty good idea based on the fact that the holes in the short DB 'ladder' I use have the same spacings as the standard DB Defender long 'ladder', and the top hole in pic 2 is in line with the centre of the 2" receiver slot under the crossmember, so the centre of the top slider hole will be as near as makes no odds 1.1/4" below the bottom face of the crossmember.
If at some stage this week I get the chance in daylight, I'll try to get a photo with a tape measure in the picture. |
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5th Feb 2018 8:28am |
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| BogMonster Member Since: 05 Feb 2008 Location: Stanley Posts: 400  
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Sorry, no measurements as I haven't put it on yet, but I have a Terrafirma receiver hitch to go on the Puma (similar setup to what blackwolf shows) and just by looking at it I am pretty sure the bottom set of hitch holes is a lot lower than the lowest setting on the old drop plate, and that's OK towing my twin axle Ifor tipper even with 33" tyres on.
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6th Feb 2018 12:03am |
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| BogMonster Member Since: 05 Feb 2008 Location: Stanley Posts: 400
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Just occurred to me that I can measure the old and the new - sorry for crap photos but taken in a dark garage, good enough to show the layout.
Photo 1 existing fixed drop plate measures: - Lower edge of crossmember to floor 23.5" - Lowest set of bolt holes to floor 16.5" Click image to enlarge Photo 2 new Terrafirma receiver hitch is the same measurement - 7" from where it fits against the lower edge of the crossmember to the lowest set of holes, so the lowest holes will be the same distance off the floor Click image to enlarge This is measured on a standard Tdci 110 SW Utility with standard suspension and 33x12.50R15 tyres fitted, so slightly higher than factory. I also bought the receiver as the standard arrangement is tiresome off road. My old Tdi 110 has a Southdown tank guard/tow pack, but that seems to have been discontinued. Hope that helps! |
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6th Feb 2018 12:16am |
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| Devon-Rover Member Since: 22 Jan 2015 Location: South Devon Posts: 916
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Cheers bogmonster I do have the DB adjustable and all this talk of bolt holes is confusing it slightly as Top of ball height is something transferable from vehicle to vehicle vis a vis hitch setup to setup.
Someone will be along shortly to confirm or deny Whilst i'm game for science it's an expensive gamble. Also can be found on Fb, Ytube, Insta & Twitter @4WDSouthwest |
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12th Feb 2018 9:24pm |
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| legin Member Since: 22 Jul 2017 Location: Chelmsford Essex Posts: 1004 
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Most trailer's like to be towed at 16 1/2" to 17 1/2" top of ball.I have towed twin axle Ifor Williams a tri axle Brian James car transporter and my Swift 645 twin axle caravan all on the same setting .
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12th Feb 2018 10:50pm |
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| Supacat Member Since: 16 Oct 2012 Location: West Yorkshire Posts: 11018 
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Legin - what setup do you have for this?
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13th Feb 2018 12:56pm |
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| BogMonster Member Since: 05 Feb 2008 Location: Stanley Posts: 400
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OK, here's more info then from actual measurements. The final ball height also depends on what sort of ball hitch you have. Mine is now fitted, as predicted it is 16.5" to the lower set of bolt holes. I have a combi hitch on there at the moment so the distance to the top of the ball is 20.5", but a standard ball-only hitch would be a bit lower than this (I reckon about 2" lower is likely). This vehicle is on standard suspension and 33" tyres and the receiver hitch is a Terrafirma one. Overall setup: Click image to enlarge Distance to floor Click image to enlarge --- 2006 Defender 110 SW 300Tdi • 2011 Ford Ranger XLT crewcab • 2015 Defender 110 Station Wagon Utility TDCi |
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14th Feb 2018 12:12am |
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| Devon-Rover Member Since: 22 Jan 2015 Location: South Devon Posts: 916
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Brilliant thanks for that.
Your previous post put your rear X at an inch above mine so it's simple maths. I have a similar hitch so that makes things simpler too. It does though prove the point that the DB drop does indeed rear lower than the receiver. but it is only an inch which shouldn't upset things too much. If anyone has the safari equip it'll be good to know exact model for model. Also can be found on Fb, Ytube, Insta & Twitter @4WDSouthwest |
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14th Feb 2018 8:09am |
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| BogMonster Member Since: 05 Feb 2008 Location: Stanley Posts: 400
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Just to add to this, EC rules appear to require "towball height" to be 350-420mm (13.8-16.5") with the vehicle laden, but that appears to be to the middle of the ball not to the flat on top. I think I'd have to put quite a lot of beer in the back of the 110 to get it down that far
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2006 Defender 110 SW 300Tdi • 2011 Ford Ranger XLT crewcab • 2015 Defender 110 Station Wagon Utility TDCi |
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14th Feb 2018 10:23am |
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