Can a ST215/75-14 Trailer Tire Replace a G78-14ST

Question

Question:

My boat trailer has tires that say G78-14ST on them can I put on ST215/75R14 with a load rating of C and not have an issue

asked by: Darin

0

Expert Reply:

The modern size equivalent to the G78-14ST that you have is the 205/75-14. The ST215/75-14 size you are interested in is close enough to this size that it would work just fine.

I would recommend the Provider ST215/75R14 Radial Trailer Tire - Load Range C # TTWTR21514 as it is a radial tire in the size and Load Range you want plus it has a higher speed rating of 81 mph unlike most trailer tires that are only rated for 65 mph.

expert reply by: Jameson C

0

Answer 1

Yes, radial tires are much preferred over bias ply tires for a number of reasons. The main difference between a radial ply and a bias ply tire is how the tire is constructed. The cords inside a bias ply tire run at a 32 degree angle to the direction…

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Answer 2

The two tire sizes you have are similar but they are not the same. The 215 tire size is slightly larger in diameter and in width. You would want to go with a new wheel and tire in the size of ST205/75R14 like the part #AM32153 to match that size. The…

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Answer 3

Your tire size of G78-14ST is the same as the modern size 205/75-14. For this same size in a Load Range of C we have the part #AM10234 which would work well. It's a radial tire with a capacity of 1,925 lbs at 60 psi and has a speed rating of 81…

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Answer 4

The 117/112L that you are seeing on your tire is in reference to the load range and speed rating. There is tire load index chart for light truck (LT) tires and the 117 corresponds to 2,833 lbs for single tires and the 112 corresponds to 2,469 lbs for…

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Answer 5

Thank you for the photo of your utility trailer that appears to already have safety chains installed near the coupler. Safety chains should be selected based on trailer weight and on the length you need. If your trailer has a 3500-lb-rated axle then…

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Answer 6

If your current springs have 5 leaves then going to a 7 leaf spring will increase the height of the trailer a little and make the trailer more susceptible to sway. Regarding capacity if you go with springs rated higher than what is required it will…

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Answer 7

I agree it is the right time to upgrade to a Lithium charger/converter as not all are Lithium compatible. I recommend using the Progressive Dynamics Mighty Mini AC/DC Panel and Converter/Smart Charger - 60 Amp #PD4060K which is a replacement for your…

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Answer 8

For the LCI52-SB-86.5-68.5, the two ending measurements are: 1st - measurement from hub to hub, meaning the length of the axle in this case is 86.5 inches. 2nd - spring seat dimension where they're welded, meaning the spring seats are 68.5 inches…

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Answer 9

The number you provided, "7753400" is a patent number which corelates to the Equalizer for E-Z Flex Suspension part #013-144-03. This is for a single equalizer but if you need the entire kit it's the Dexter E-Z Flex Suspension Kit part…

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Answer 10

From what I could find it looks like your 122R (red) and 122Y (amber) lights measure 3.75" x 1.70" x .81". We don't have any replacement lense directly for the GLO-BRITE lights but we do have some similar lights that you could use…

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Answer 11

For your enclosed trailer application I have several suggestions for adding interior lighting that you can control directly via a switch. Since your current 4-pole trailer wiring does NOT include a 12V auxiliary power feed that could power inside…

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Answer 12

On a 2005 Chevy Silverado 1500, If you are facing the front of the truck looking at the power distribution box, there will be a post at the back left side and a fuse slot near it. It is that fuse slot that you will install a 30 amp fuse. I have…

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Can a ST215/75-14 Trailer Tire Replace a G78-14ST

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