Trailer Tire Sizing???

[Drift'r]

Has anyone ever ran into this problem?
I ordered new tires ( F-78 x 14st ). My new tires the same size, but different brand is 2" shorter. This doesn't make sense , but is true. Even a 205-75-14 in another brand is the same amount shorter. Does anyone know if I am in for any problems by going to this shorter tire?
Thanks , Drift'r

[Hans]

Any F-78 should be the same size as any other F-78, but a 205-75-14 is not an F-78. It's a whole different tire design.

I'd feel comfortable substituting 205-75-14 for the F-78's, but only if you replace both. Don't mix sizes on the same axle.

Hans
--
"There is nothing; absolutely nothing; half so much worth doing,
as simply messing about in boats." :-)

[rich]

each tire manufacture makes the tires different.
load range, tire pressure all play avery important roll.Look on the web at,bridgestone/firestone
michelin,goodyear,pirelli,kellyspringfield,they will help you out.take 2 of the same size tires,by 2 different tire companies,and you will see the difference,visit a retailer that sells different brands.Remember ,over and under inflation,will damage a tire also.wal-mart and kmart sell boat trailer tires already mounted .
check with probass and cabelas catalog also.do not mix and match on the same axle,causes big,big, problems.Oh,one other thing hows your spare tire?
Rich

[Rupe]

Recently purchased one new tire for my trailer; size 4.80X12. Figured I would use the new spare tire that cane with the trailer. After I read this post I checked the new tire against the spare for size and you guessed it, the new tire was almost 2 inches taller. Had to buy a second tire, but thanks for the info; it saved me problems down the road.

[SRHODES]

You have two options. 205/75D14 or 215/75D14.

F78-14ST 205/75D14/c 215/75D14/c

26.50 diam 26.14 diam 26.69 diam

I would go with the ST215/75D14 load range C, I would consider radials, they will run cooler and last longer. They do cost a little more than bias ply. Good Luck!