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Jay
Dodge Dakota
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3/31/2005
15:19:48
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 Subject: Required Tire Load Rating
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Message:
Hey everyone,
I'm just in the hunt to get a set of summer tires for my 2000 Dakota Club Cab 3.9L and was wondering what the minimum load rating required is.?? Looked on the door, and it simply states that the rim is 15x7 and the stock tires were 215/75R 15's..
So was curious if a 96H rating would be enough?
Thx
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huh ?
Dodge Dakota
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4/01/2005
07:50:32
|  RE: Required Tire Load Rating
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Message:
We're used to seeing load rating in pounds, what do you mean ?
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namfflow
Dodge Dakota
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4/01/2005
08:21:13
|  RE: Required Tire Load Rating
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Message:
From the Tirerack website:
Using a P195/60R15 87S tire size as our example, the 87S at the end of the size represents the tire's service description. A service description identifies the tire's load index and speed rating. Service Descriptions are required on all speed rated (except for Z-speed rated) tires manufactured since 1991.
The first two digits (87S) represent the tire's load index and are followed by a single letter (87S) identifying the tire's speed rating.
Load Index
P195/60R15 87S - The load index (87) is the tire size's assigned numerical value used to compare relative load carrying capabilities. In the case of our example the 87 identifies the tires ability to carry approximately 1,201 pounds.
The higher the tire's load index number, the greater its load carrying capacity.
89 = 1,279 pounds
88 = 1,235 pounds
87 = 1,201 pounds
86 = 1,168 pounds
85 = 1,135 pounds
A tire with a higher load index than that of the Original Equipment tire indicates an increase in load capacity. A tire with a load index equal to that of the Original Equipment tire indicates an equivalent load capacity. A tire with a lower load index than the Original Equipment tire indicates the tire does not equal the load capacity of the original.
Typically, the load indexes of the tires used on passenger cars and light trucks range from 70 to 110.
Load Index Pounds Kilograms
Load Index Pounds Kilograms
71 761 345 91 1356 615
72 783 355 92 1389 630
73 805 365 93 1433 650
74 827 375 94 1477 670
75 853 387 95 1521 690
76 882 400 96 1565 710
77 908 412 97 1609 730
78 937 425 98 1653 750
79 963 437 99 1709 775
80 992 450 100 1764 800
81 1019 462 101 1819 825
82 1047 475 102 1874 850
83 1074 487 103 1929 875
84 1102 500 104 1984 900
85 1135 515 105 2039 925
86 1168 530 106 2094 950
87 1201 545 107 2149 975
88 1235 560 108 2205 1000
89 1279 580 109 2271 1030
90 1323 600 110 2337 1060
Hope that helps you.
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yup
Dodge Dakota
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4/01/2005
08:34:56
| RE: Required Tire Load Rating
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Message:
Much easier without figuring in codes that include speed rating. Just figure the weight of your Dak, plus the most it can carry, then divide by four to get the minimum load rating for each tire. The speed rating has nothing to do with this and doesn't need to be considered for the poster's question.
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Jay
Dodge Dakota
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4/01/2005
12:35:50
| RE: Required Tire Load Rating
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Message:
Thx everyone, guess I'll have to go see how much the truck weighs and go from there.
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namfflow
Dodge Dakota
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4/03/2005
08:33:34
| RE: Required Tire Load Rating
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Message:
Okay, let’s simplify this.
The 215/75-15 tire in general seems to have a code of 100 therefore a tire with a code of 96H (the H is the speed rating) would NOT be adequate for the Dak.
Sounds like tire you are looking at is smaller than stock. For your safety make sure you use at least the size that came on the truck. I would guess that you are looking at a 215/70 in place of a 215/75. That would not work well for various reasons too numerous to mention here. If you want a 70 series try a 235/70 that would have a rating of about 102 and the diameter change is small. Do a search here for a size converter program. There used to be one listed. I used to have it bookmarked but I lost it somehow.
BTW, a tire rated at 100 has a maximum load of 1764 lb as per the chart. A 96 has a maximum load of 1565 lb. that is a 99 lb difference per tire. I wouldn’t risk it.
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Jay
Dodge Dakota
JOIN HERE
4/03/2005
11:32:06
| RE: Required Tire Load Rating
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Message:
Thanks for the help guys.. looks like stock tires or bigger it is..
thx again
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