Young Ed Posted July 17 Report Share Posted July 17 Anyone familiar with how these are measured? I've got a somewhat homemade trailer that I was given probably 20y ago and it's never had grease caps. Tired of the inside of the hubcaps being covered in grease along with it seeping out. I measured the ID of the hub at 2.25. How much of a friction fit am I looking for? I've seen 2.33 and 2.4 caps listed. Quote Link to comment Share on other sites More sharing options...
Dave72dt Posted July 17 Report Share Posted July 17 I would say the 2.33 if it's deep enough. The hub may have a casting number and the axle may have a manufacturer tag on it that may help. There are some odd sized caps out there and you may only find them at a trailer sales and repair. Any place that sells and/or installs trailer hitches should be able to access those odd ones. Take the hub with you. If it's been open to the elements that long you may want to inspect the bearings and seal. 2 Quote Link to comment Share on other sites More sharing options...
Young Ed Posted July 17 Author Report Share Posted July 17 I'll have to look closer for a number. I didn't notice one but I also wasn't looking. The trailer has had wheels/ tires with hubcaps so the bearings seem ok. I'm just tired of grease everywhere and the possibility of ruining a bearing Quote Link to comment Share on other sites More sharing options...
Sniper Posted July 17 Report Share Posted July 17 I'd pull the hub and take it tot eh trailer shop. You are probably going to want to clean them up and re-grease once you get a new cap anyway Quote Link to comment Share on other sites More sharing options...
metoodavid Posted July 23 Report Share Posted July 23 On 7/18/2024 at 12:08 AM, Dave72dt said: I would say the 2.33 if it's deep enough. The hub may have a casting number and the axle may have a manufacturer tag on it that may help. There are some odd sized caps out there and you may only find them at a trailer sales and repair. Any place that sells and/or installs trailer hitches should be able to access those odd ones. Take the hub with you. If it's been open to the elements that long you may want to inspect the bearings and seal. Thanks for this response! Quote Link to comment Share on other sites More sharing options...
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