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    Hard block vs girdle vs both

    Hello all, I currently have a 99 7.3 with 250/100’s, s369sxe, cryo’d forged rods, and otherwise stock bottom end. It just broke the crank somehow (haven’t pulled down yet to inspect) and am going to build another engine. I want to upgrade the bottom end and was wanting opinions on using a...
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    CSD or Irate T4 kit comparison

    I am about to go T4 on my truck and want to know the pros and cons and get feedback from you guys who have done it on the better kit. CSD or Irate. The main differences I see are what looks like a 2 piece down pipe on the irate kit along with returning oil to a different place. I know the CSD...
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    Help with converter slipping

    I just had a 4r100 built for my 7.3 and the torque converter will slip under max power after its already locked up. The trans has billet internals with The full transgo tugger kit installed. The converter is a diamond t low stall supposedly rated for 650 hp. I have 250/200’s and a kc 38r so I...
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    Coast clutch locked in built 4R100’s?

    I recently purchased a built trans from a reputable builder. After I got it installed I noticed that no matter what the computer told the trans to do that if the trans was not in 4th that the coast clutch was always engaged. With my tuning this made for a very annoying 4-3 downshift as the coast...
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    Question for all tuned automatic truck guys

    I am running into the same problem with transmission shifting with multiple company's tuning. Once the torque converter locks up in my truck it wont unlock again until you get below a set mph. Some tuners have it at 30, some a little less like around 27. This annoys me due to the fact that when...
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    Need 99.5-03 7.3 plenums

    I am converting my e99 to 99.5 so I can run a 38r. I have everything but the larger 3 inch plenums. Anybody have a set for sale?

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