Sorry to those who have tried to contact me... My chev axle, dually, utility, 1 ton conversion is complete. working welll with the new ratios (I can actually use the overdrive automatic setting on occasion}. The conversion took 3 weeks of planning, research and auto wrecker scouting. Two trips to the tire shop, and about 3000$ Canadian. Also 1 trip to the driveline specialist to have the chev driveshaft modified ( cut, joined, welded, balanced,to mate to the toyota transmission). I am a hobby mechanic, and with help from my brother, the actual work took about 22 hours. Be advised, you may need inspection and or certification, and documentation of the swap for insurance and or registration purposes, depending on the laws and regulations in your state/ province. This may incure additional costs. My rear wheels no longer match my front. I don't carry a spare for the dually, but I check the tires regularily, and carry a pump and plug kit. I still carry the toyota spare for the front.... The chances of having 2 flats on one side of the dually set up is slim, check your unit regularilly.... BECAUSE I DID THE WORK MYSELF, i saved considerable money on labour costs.. If you have to pay a shop to do the work, this is probably not feasible. I would do it again if I had to. the chev axle is reliable, so I never will have to. If you want details I can provide about a 40 step procedure, all the best. AS I SAID IN THE PAST, IF YOU ARE UNSURE OF THE AXLE UNDER THE TOYOTA, DO NOT BUY IT OR EVEN TEST DRIVE IT. I ALMOST KILLED PEOPLE WHEN MINE FAILED. DO YOUR RESEARCH FIRST.....ASK, ASK, ASK, ...GET ANSWERS. ..BE SURE! BE SAFE! I now have 16 000 km travel on the swap, and am pleased the motorhome is a 1985 Vanguard, 22re automatic that originally had the fake/garbage dual add on rim system that failed....