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Old 05-22-2015, 12:43 AM   #43
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What is the name of your website, so I may go there and learn something.
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Old 07-12-2016, 02:06 PM   #44
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Here is a new calculator:

Truck and Trailer Weight Calculator
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Old 07-13-2016, 05:26 PM   #45
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Originally Posted by merc123 View Post
Here is a new calculator:

Truck and Trailer Weight Calculator
Appreciate your efforts.

I have discovered a 50 pound error in your formula for Vehicle+Trailer GVW. I know that the results should be 11,650, but the result displayed is 11,600.

Additionally, this error causes a 50 pound error for the pin weight. Although there is a difference of 3,350 between loaded and unloaded rear axle weight, the true pin weight is 3,400. Looks like you did not account for the additional 50 pounds on the front axle.

Why enter the GCVW in addition to the GAWs? Cannot the two GAWs be summed to obtain the GCVW?


Here are my entry weights:
Ft. GAWR: 5940
Rr. GAWR: 9650
Max Trailer Wt: 20,400
GCWR: 28900
GVWR: 12,200

Vehicle only
Fr. GAW: 4,750
Rr. GAW: 3,500
GCVW: 8,205

Vehicle+Trailer
Fr. GAW: 4,800
Rr. GAW: 6,850
Trailer Wt: 16,200
GCVW: 27,850
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Old 07-13-2016, 05:49 PM   #46
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Originally Posted by Cyclone Dave View Post
Why enter the GCVW in addition to the GAWs? Cannot the two GAWs be summed to obtain the GCVW?
No - adding the GAWRs you might come close to the GVWR, maybe not. There are things like tires, brakes and suspension, and powertrain that figure into the GVWR.

GCVW ??? GCWR is the weight limit for Tow vehicle and vehicle being towed.
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Old 07-13-2016, 06:02 PM   #47
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Quote:
Originally Posted by Cyclone Dave View Post
Appreciate your efforts.

I have discovered a 50 pound error in your formula for Vehicle+Trailer GVW. I know that the results should be 11,650, but the result displayed is 11,600.

Additionally, this error causes a 50 pound error for the pin weight. Although there is a difference of 3,350 between loaded and unloaded rear axle weight, the true pin weight is 3,400. Looks like you did not account for the additional 50 pounds on the front axle.

Why enter the GCVW in addition to the GAWs? Cannot the two GAWs be summed to obtain the GCVW?


Here are my entry weights:
Ft. GAWR: 5940
Rr. GAWR: 9650
Max Trailer Wt: 20,400
GCWR: 28900
GVWR: 12,200

Vehicle only
Fr. GAW: 4,750
Rr. GAW: 3,500
GCVW: 8,205

Vehicle+Trailer
Fr. GAW: 4,800
Rr. GAW: 6,850
Trailer Wt: 16,200
GCVW: 27,850
Sum of front and rear axle GAWR = 15,590 - this exceeds your GVWR (12,200) by 3,390. Does not seem right.
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Old 07-13-2016, 06:19 PM   #48
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Originally Posted by Gordon Dewald View Post
Sum of front and rear axle GAWR = 15,590 - this exceedsee your GVWR (12,200) by 3,390. Does not seem right.
I think there are a number of issues with those numbers for example -
Vehicle only
Fr. GAW: 4,750
Rr. GAW: 3,500
GCVW: 8,205

Those axle weights equal a GVW (not GCVW) of 8,250# (not 8,205#)
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Old 07-13-2016, 07:02 PM   #49
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Originally Posted by Mich F View Post
No - adding the GAWRs you might come close to the GVWR, maybe not. There are things like tires, brakes and suspension, and powertrain that figure into the GVWR.

GCVW ??? GCWR is the weight limit for Tow vehicle and vehicle being towed.
I did not say anything about GAWR or GVWR in my comment.
Scale Wt. Ft: 4750+Rr: 3500=GCVW: 8250. Why should I have to calculate the GCVW entry when you could just create the formula to sum the front and rear GAW? Same goes for the "Vehicle+Trailer" inputs.
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Old 07-13-2016, 07:07 PM   #50
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Originally Posted by Mich F View Post
I think there are a number of issues with those numbers for example -
Vehicle only
Fr. GAW: 4,750
Rr. GAW: 3,500
GCVW: 8,205

Those axle weights equal a GVW (not GCVW) of 8,250# (not 8,205#)
Correct. I didn't notice I transposed the digits. Should have typed 8,250.

Now I can't edit. Silly that the edit function is turned off after a period of time.
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Old 07-13-2016, 07:13 PM   #51
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Originally Posted by Gordon Dewald View Post
Sum of front and rear axle GAWR = 15,590 - this exceeds your GVWR (12,200) by 3,390. Does not seem right.
I've never seen when the GAWRs equal to or are less than the GVWR. From every chart I've read to date, the sum of the GAWRs always exceed the GVWR.
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Old 07-13-2016, 07:31 PM   #52
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OK - what was confusing me is your GCVW ,which I have never heard of.
When you add your GAWs, most people come up with a GVW.
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Old 07-13-2016, 08:17 PM   #53
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OK - what was confusing me is your GCVW ,which I have never heard of.
When you add your GAWs, most people come up with a GVW.
It's not mine! GCVW is written and explained right there on the Excel form.

Yeah, but the true purpose of having a weight safety calculator is not to have to calculate weights to get a sum before entering any numbers.

The calculator products I created does not require the user to calculate any numbers before entering into the calculator.
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Old 07-13-2016, 08:48 PM   #54
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I was wondering why so many links on this thread weren't working, until I realized this thread started over 5 years ago.
I understand GCVW when it refers to the tow vehicle and whatever is being towed, not referring to the tow vehicle by itself - there shouldn't be a "C".
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Old 07-14-2016, 08:38 AM   #55
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Originally Posted by Cyclone Dave View Post
I've never seen when the GAWRs equal to or are less than the GVWR. From every chart I've read to date, the sum of the GAWRs always exceed the GVWR.
I am questioning the 3390 difference. There usually anywhere upwards from a few hundred pounds but this is quite significant. My 450 has a difference of 2000 lbs. What kind of truck are working with. Looks like the numbers are for a 250 or 350.

On the door pillar on the drivers side there should be a series of numbers for the vehicle? Mine are

GVWR - 16,000
GAWR (front) - 6,000
GAWR (rear) - 12,000


From the Ford brochure that came with my truck:
GCWR - 33,000
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Old 07-15-2016, 09:21 AM   #56
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Quote:
Originally Posted by Gordon Dewald View Post
I am questioning the 3390 difference. There usually anywhere upwards from a few hundred pounds but this is quite significant. My 450 has a difference of 2000 lbs. What kind of truck are working with. Looks like the numbers are for a 250 or 350.

On the door pillar on the drivers side there should be a series of numbers for the vehicle? Mine are

GVWR - 16,000
GAWR (front) - 6,000
GAWR (rear) - 12,000


From the Ford brochure that came with my truck:
GCWR - 33,000
Sorry, big error correction on my part. I took the GAWRs from my app not realizing they were changed and not true for my truck. Regardless, it doesn't eliminate the error for the pin weight on the calculator that merc123 posted.

The actual difference between sum of the GAWRs and GVWR is 2,350.

Here are my corrected entry weights:

Ft. GAWR: 5200
Rr. GAWR: 9350

Max Trailer Wt: 20,400
GCWR: 28900
GVWR: 12,200

Vehicle only
Fr. GAW: 4,750
Rr. GAW: 3,500
GCVW: 8,250

Vehicle+Trailer
Fr. GAW: 4,800
Rr. GAW: 6,850
Trailer Wt: 16,200
GCVW: 27,850

2008 Ram 3500
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