2006-2010 1/2" Allison transmission cooler hose set #10300

  • By: Heather Penfound
    I installed this hose kit in the 3.5 hours that were estimated in the kit, including time to test and clean the tools. It went together fine, and I saved time by cutting the old lines out rather than trying to fish them through the chassis to help them on their way to the garbage bin. Fluid loss was minimal as I had each new fitting ready to go when the old one was removed. The hardest part was dealing with the lower rad hookup, but once I gave that spot a special name and repeated it a few times, the rest was pretty straight forward.
  • By: Rodney J Guyette
    The product and fittings are first rate. I am impressed with the quality of the materials and workmanship. The installation went pretty much per the instructions. It took me 4-hours because I re-routed the first transmission hose 3 times. I suggest you consider adding a note regarding the radiator connections such that one fitting is removed and replaced before the other fitting is removed. This should reduce the amount of coolant that is lost. The lower radiator connection took several tries to get the hose threaded onto the fitting. The fitting is at an awkward angle. I had to cut the factory cooler to radiator hose in half to get it out. Going on three weeks now and no leaks. I plan to keep an eye on the hoses where they are routed near the engine and oil pan and will report more on that later. Coolant lost = 1/2 gallon. ATF lost = 1 quart. Barked knuckles = 0. Overall I am satisfied.
  • By: David Anderson
    I fought those sorry factory transmission cooler lines for years. Had them replaced under warranty, then replaced them with the new improved lines from GM at my expense and they still leaked.

    I finally heard about Red's lines and ordered a set, a little bit of a struggle to put on up front as it is pretty tight in there. They absolutely do NOT leak, it's wonderful, the driveway and garage floor are clean and dry for the first time in years. Thanks Red.

    Dave A.
  • By: Roy Herman
    I rated the hoses as average because I really have nothing other than the factory ones to compare to. The lower rad connection is a real pain and is the only one that I will be watching for leaks although there are none yet. I fought with getting the factory one out in one piece for half an hour and finally ended up cutting one of the rubber crimps. This might be worth noting in your instructions. It almost seems like the tranny to cooler line could have been an inch or 3 shorter. So far so good! Appears to be a good quality product and I don't anticipate any problems and will continue to monitor often. When my 2005 starts leaking, I will likely be back for more.
Web Analytics