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#1
May 27th 15, 11:37 PM
posted to rec.aviation.soaring
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50 MM ball for hitch
I've done 2,000 miles on a 1 7/8" on my euro trailer with no problems. In a pinch you can buy this from AutoZone.
Anyone had trouble with a 1 7/8" on a 50mm hitch? It is 2.375 mm smaller in diameter. 
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#2
May 28th 15, 12:21 AM
posted to rec.aviation.soaring
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50 MM ball for hitch
I looked at this a while ago and found a remarkable variation in the equatorial measurements on balls stamped 1 7/8. Some were much closer to 2"; some were almost a full 1/8 under (i.e. closer to 1 3/4). I've heard stories of trailers coming off an undersized 1 7/8, but I don't know if the stories were backed up by actual incidents or just stories made up by active imaginations. Regardless, since 50mm balls are readily available, why not just pair them with 50mm couplers when you have one?
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#3
May 28th 15, 12:26 AM
posted to rec.aviation.soaring
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50 MM ball for hitch
On Wednesday, May 27, 2015 at 7:21:37 PM UTC-4, Papa3 wrote:
I looked at this a while ago and found a remarkable variation in the equatorial measurements on balls stamped 1 7/8. Some were much closer to 2"; some were almost a full 1/8 under (i.e. closer to 1 3/4). I've heard stories of trailers coming off an undersized 1 7/8, but I don't know if the stories were backed up by actual incidents or just stories made up by active imaginations. Regardless, since 50mm balls are readily available, why not just pair them with 50mm couplers when you have one? No kidding. I have a 2", 1 7/8", and 50mm in the car all the time.
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#4
May 28th 15, 05:20 AM
posted to rec.aviation.soaring
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50 MM ball for hitch
On Wednesday, May 27, 2015 at 6:26:55 PM UTC-5, Tony wrote:
No kidding. I have a 2", 1 7/8", and 50mm in the car all the time. I have gone even one further. I have a 1 7/8" slight drop, 50 mm slight drop, 2" slight drop, and 2 inch up-turned. No fun having to get out big wrenches to flip things over, and I have one pretty low trailer that really needs the 2 inch dropped hitch. Oh, and if I am there and you left your cobra trailer keys at home, come see me. I can get you in. For a small fee. :-) Steve Leonard
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#5
May 28th 15, 02:29 AM
posted to rec.aviation.soaring
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50 MM ball for hitch
It works OK but there's a lot of clunking due to the slop. With a worn
hitch you might lose your trailer. On 5/27/2015 4:37 PM, PBA wrote: I've done 2,000 miles on a 1 7/8" on my euro trailer with no problems. In a pinch you can buy this from AutoZone. Anyone had trouble with a 1 7/8" on a 50mm hitch? It is 2.375 mm smaller in diameter. -- Dan Marotta
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