wheelbase [Archive] - TheDieselGarage.com

: wheelbase


sexytrkr
03-22-2009, 12:16 AM
how do they measure the wheelbase of a truck? I know its from the center of the wheel on the front axle, but at what point on the rear? I thought it was the middle of the two axles, but im not sure. Thanks!

pullingtrucker
03-22-2009, 12:56 AM
The wheel base is measured from the center of the front (steer axle) to the center of the rear drive axle.

sexytrkr
03-22-2009, 01:02 AM
ok, thanks. I'll bust out the measuring tape when i get to the house. I cant seem to find the WB printed anywhere. :shrugs

hispeed428
03-22-2009, 05:23 AM
I would have to disagree.I'm in Canada where if you wanna be legal the max wheelbase is 244".Thats measured from the center of steer axle to center of rear turning group which would be the center of the rear tandems.

pullingtrucker
03-22-2009, 12:08 PM
I know that Ohio has us measure they way I stated for permits...many other states do also. Never been to Canada since they don't like my truck (271" wb and a 53' trailer).

9 Axle
03-22-2009, 01:47 PM
The "Spec" WB is from the center of the front, (group with tandem steer) to the center of the rear axle or group of axles, center of tandem, center axle on tridem. The states want the dimensions of all axle groups for permit requirments. Jus' tryin' to help.

hispeed428
03-22-2009, 09:26 PM
A "SPEC 244 WB" 3 axle tractor with 54" tandem spread measures out like this,217"s from center of steer axle to center of frt drive, 54" from frt drive to rear drive.

9 Axle
03-22-2009, 11:54 PM
That might be 218". From the C/L of the steer to the C/L of the front driver.
Add 26", (1/2 of the normal tandem spread, 60" in Canada) & you have a 244" W.B.

hispeed428
03-23-2009, 02:54 AM
Yeah,just goin by what I have.You can spec a 52",54",or a 60" spread tandem

9 Axle
03-23-2009, 03:01 AM
52" seems to be the accepted standard in the states, 54 is extremely rare, & 60" is used extensively above the 49'th & in the states for heavy haul.

hispeed428
03-23-2009, 03:11 AM
54" is very common up here to but 52" and 60" are pretty much standard

chris142
03-23-2009, 04:02 AM
If it's a 2 axle truck you measure from the center of the front wheel to the center of the rear wheel. If it's a 3 axle/ tandem axle truck you measure from the center of the front wheel to the middle between the rear wheels.

9 Axle
03-25-2009, 03:41 AM
Exactly !!!!!!!!!!!!!

Dualie
03-28-2009, 07:44 AM
If it's a 2 axle truck you measure from the center of the front wheel to the center of the rear wheel. If it's a 3 axle/ tandem axle truck you measure from the center of the front wheel to the middle between the rear wheels.



Agreed. center of front hub to the center of the two drive axles. On a tridem its center of the front axle, to the center of the center drive axle.

Lmackattack
04-04-2009, 05:57 AM
I also agree that it is measured from the center of front axel to the center of the rear tandems. my 77 Mack was marked as a 206"WB on the build sheet..I measured as I said above and it was indeed 206"

pichu
04-04-2009, 08:16 PM
I also agree that it is measured from the center of front axel to the center of the rear tandems. my 77 Mack was marked as a 206"WB on the build sheet..I measured as I said above and it was indeed 206"
:thumbsup yea i agree wit everyone ,the international truck has its own wheel base in the door too ,but when the DOT stop u in the scale ,:(im a little confused because they measure the front tire to the back axel (the truck)they say thats the wheel base of the truck !! BRIDGE FORMULA!! an after they measure you to the middle axel (truck) to the back axel in the trailer:)

9 Axle
04-05-2009, 11:07 PM
thumbsup yea i agree wit everyone ,the international truck has its own wheel base in the door too ,but when the DOT stop u in the scale ,:(im a little confused because they measure the front tire to the back axel (the truck)they say thats the wheel base of the truck !! BRIDGE FORMULA!! an after they measure you to the middle axel (truck) to the back axel in the trailer

The DOT is measuring your "inner & outer" bridge. The formula is in the front of most truck road Atlas's What's legal in one state is not in another! Get's to be a pain for us heavy haulers!:mafia1:

pichu
04-06-2009, 12:18 AM
The DOT is measuring your "inner & outer" bridge. The formula is in the front of most truck road Atlas's What's legal in one state is not in another! Get's to be a pain for us heavy haulers!:mafia1:[/QUOTE]

:(the truth i dont know what state you live in .i pull containers but in twenty feet i can only have 12,500, 32,500 32,500 with a pier chassis:(,theres differnt measures but they do it by feet , i see a lot of interstate in the board when they enter california .:bang:movin sliders tamdens, thats the welcome here to ca:thumbdown,but if you want information go to the dmv and buy a book thats called(Vehicle Code) it cost 3 to 5 bucks ,i know it you the heavy haulers always have permits to pull big moster tractors, include the tare about yourtractor and lowboy is around 60,000 or 70,000:happymugs

9 Axle
04-06-2009, 08:41 PM
i see a lot of interstate in the board when they enter california .:bang:movin sliders tamdens, thats the welcome here to ca:thumbdown,but if you want information go to the dmv and buy a book thats called(Vehicle Code) it cost 3 to 5 bucks ,i know it you the heavy haulers always have permits to pull big moster tractors, include the tare about yourtractor and lowboy is around 60,000 or 70,000

Truth be known the jeep, stinger, extension, (for CA), trailer & truck are 82,000. Permit empty, stacked or not. Only heavy stacked, heavy & long assembeled. :gaah

6.0brianDRW
04-06-2009, 09:17 PM
If it's a 2 axle truck you measure from the center of the front wheel to the center of the rear wheel. If it's a 3 axle/ tandem axle truck you measure from the center of the front wheel to the middle between the rear wheels.

i load aircraft for the airforce and that's the way we do it.