Are brake bleeder screws on calipers all the same size? I need to replace the little rubber caps on several (on multiple cars) and want to just order a bunch but, want to make sure they are all the same size (or close). Couldn’t find a straight answer online as most sites referred to length/thread size and I just care about diameter of the top so the little caps will fit/stay on.
Thanks
I would guess they’d vary from foreign to domestic, but I bet a call to your local Parks store would be your best bet.
5/16ths rubber caps work on most passenger vehicles.
Bigger stuff like trucks use 3/8ths
They are all over the place, but those two size caps will fit most bleeders
EF has been reputed to know stuff… I can’t pull that sort of institutional knowledge out, another reason why CF community is looking good!
instead, i bought a set of relatively inexpensive digital calipers a while back and they have definitely helped me make fewer runs to the hardware store enough to pay for themselves. the top hit on the top shopping website is $22
does everybody know what taper their trailer spindles are? i do now!
God bless a saltwater fisherman.
Thanks for the info.
And yes, I do know what size spindles are on both of my trailers.
He wasnt talking about the back of the spindle where you measure the ID for the bearing size
he was asking if you know the taper of the spindle.
i think thats what he meant
Yes, I know that as well. Well, not from memory but I wrote it down.
I usually punch/pull the old ones out and look at the numbers stamped on the bearing cause my CRS* condition gets worse all the time
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Cant Remember Sh%#
I’m accustomed to the kind of catastrophic failure that results in needing new spindles, etc. so I should probably get this stuff tattooed on my arm
This time all I really need is a grease seal, anybody wanna bet on the big boat store having a loose part? Otherwise I’m in for a new hub and the old one becomes a spare that I’ll piece together when I’m next at Seel’s to pay for a big job.
You can get what you need at autozone or advanced auto, I carry a spare hub and floor jack for the inevitable roadside misery
Floor jack is a huge savings in elbow grease.
Speaking of grease, I think the easiest way is to carry a spare with hub already mounted on it, then it’s just 1 cotter pin and castle nut instead of 5 rusty lugs on the side of the road.
After that, you’ll want a couple of these, then you can deal with the damaged tire/rim/hub later
Fortunately I’ve been lucky and ever had any issue with bearings on the road.
But I do once a year remove my bearings and clean them and repack them. Also have buddy bearings.
And whenever we make a pee stop or gas stop I ck the temperature of the bearings.
They’re typically around 95 to 100°.
And of course the axle with the brakes is usually 10 to 15° hotter depending on how hard I’ve been breaking.
I try to keep some disposable rubber gloves to keep my hands soft and supple 
and been told not to do it but I’m hardheaded and I anti-seize my lugs, pulled dual axle trailer and boat over 600 miles just shot grease to wheel bearings every 2 hour pee break. Keep the center console in the middle of the dual axles right OTC?
Yep !!!
And back to the original question. I never really worry about the caps.
Finger a little grease on it.
Yeah, I know, not really necessary but some things I can be a little OCD about.
Inner seal? Any idea on part#? I have four in my truck, and I’m heading to IOP in the morning. Lord knows, I can’t possibly need all four on one trip?
My hubs are six lug, but I think all #41 spindles use the same inner seal?
