Wrecked 2004 suburban how do you measure the frame to see if it is bent , car was hit on passenger side bent frame horn to the right. set off the air bags.

if the frame is bent, then there is more stuff bent, it's better to have a body shop check it out, there is always more damage then you can see, , something that old, just might be a total

The checking of the frame rails for accident damage can be done easily. First place the vehicle over a flat clean cement floor. Select points on the frame rails such as front ends---suspension points---brackets attached to the rails on both sides and rear ends of rail. Make sure the points selected have a corresponding point on the other rail. Using a plumb bob drop the selected point to the floor and make a cross on the floor at that point. . Repeat the process for each selected point. The more points the easier to find where the rails are bent and by how much. Move the car out of the way and using a tape measure the distance diagonally between same points.-- EI-- from left hand front end to right hand rear end. Repeat the measuring from the opposite corners By measuring from one point on one side to the second point on the other side you will develop a continually crossing pattern of measurements. So in the end if you selected 4 points per side you will have 3 sets diagonal measurements on the floor or more . As you measure write the dimension on the floor. Now if there is a difference of more than 1/4 "(6mm)between any set of diagonals you will see if the rails are bent and if they are bent right or left or bowed in the middle. By measuring the heights of the corresponding points and recording them you will see if the rails are bent up or down. I understand it is a bit long winded but you will be in effect transposing the measurements of the points of the rails onto the floor so that the differences can be measured without the problems of items interfering with straight line distances.

The rear sway bars have not been replaced. When you look at the driver side rear the tire is even looks like it not stright. I can see where the tire is scrubbing the inside where the i believe it the control arm mounts to the frame. When you look at the rear of the tahoe while its on level ground it leans to the L side. When i measure the height of the frame from the ground there is about 1 inch difference. Also measuring from center of front wheen to the center of rear wheel there is about 1 1/2 inches difference. Any other Ideas? I am taking it to a shop to have the frame checked to make sure its not bent.

No way to tell without looking at it and taking measurements.
It may be cheaper to replace the doors than to spend the time on repairs.

It should be under the vehicle on the inside of the drivers side of the frame rail about right across trom the transfer case. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

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best bet is get the manufactures service manual its lot better than haynes usally can find on ebay cheaper ... also check compnine.com they have diagrams n oem parts

the relay is right next to the horn behinde the front bumper on the passenger side ...if you lay down and look up you will see a harness going in to it its about 2" by 2" and has aluminum finns its bolted to the frame w 2 little screws

If the engine cradle is bent or the sub frame, I'd get rid of it. If the control arm is bent, that is replaceable. With a broken axle, I'd be suspicious of the transmission as things tend to move much further then "snap back" during impact. Doing the work yourself will save a lot of $ and if you use scrap yard parts, even more (will also cut your losses if it doesn't work out well). Don't bother doing anything with the fender etc 'till you are sure it goes straight after replacing the items you mentioned. (after installing, have it aligned)
You are the best judge of whether you will keep it. You drove it every day and know what you had better than anyone else does. Time is also a factor...how long can you lay it up???
Good luck!

You can Repair a Bent Frame. There are Frame Shops all over the US. Check the Online Yellow Pages for Automotive Frame Straightening. Prices Vary from State to State But, It is notPlease Rate my Solution, I need all the Help that I can Get! Thanks! Cheap.

Usually when the frame is bent, the insurance company will total out the car. I would suggest obtaining a second opinion. With the frame bent you set yourself up for a lot of problems later with vibration issues and alignment problems.