Stretching a frame



How We did it

Cutting the frame Dismounting tire Lip on wheel rim
Once the disassembly is complete, the original frame is cut off ahead of the rear axle mounting point. This gives us a stronger place to splice at. After the cut is made, the entire rear drive assembly is rolled back out of the way. We leave it bolted together until it is transferred back to the new frame. A diamond cut is made in the original frame and the new outer frame. The inner sleeve will extend well past this splice all the way to the rear spring mount of the front axle.
TPM sensor on rim TPM sensor TPM Sensor
The new frame rails are made of grade 80 steel
An additional splice is made to the inner sleeve to meet the lengthrequirements of this truck.
Rust preventative is applied between the frame rail and inner sleeve.
Cutting the frame Dismounting tire Lip on wheel rim
Most of the frame crossmembers are adjustable. Those that are not must be cut and narrowed. Additional crossmembers are added. New holes are drilled through the double thick frame rails where crossmembers will be mounted. The rear end is bolted into it's new location. The wheelbase has gone from 232 inches to 354 inches.
Cutting the frame Dismounting tire Lip on wheel rim
Two new drive shafts (for a total of four) and hangar bearings are added. Air lines, electrical lines, etc. are lengthened. The front axle and springs must be changed out as well to handle the weight of the hyperbaric chamber.
The truck is ready to have the body installed. This will be done by a company out East. When it returns we will install the tag axle and when it returns for the last time, we will do a full alignment.