th400

  1. C

    Installing TH400 1997 K1500

    I’m try to install a TH400 in my 1997 k1500 and I’m having trouble getting the column shift to shift the trans correctly. Any tips or tricks would be greatly appreciated.
  2. E

    Th400 confusion

    To start this off. I have an '89 C1500 with a 350. The 700R4 blew up in it, and I ordered a TH400 from LKQ last year. When we installed it. It would kick down via vacuum. I have no idea how. And now, after rebuilding it with a shift kit, it no longer kicks down that way and requires me to run a...
  3. 89k25004x4

    TH400 Shifting Funny after O2 sensor replacement

    Hey everyone, I've got an '89 K2500 with a 350 TBI and TH400 trans. I replaced my O2 sensor the other day, in which this hose/line popped off. (the metal line with the orange tube on it) I figured it wasn't a big deal, a couple drops of ATF came out, i checked fluid level, (yes I'm very aware...
  4. 89k25004x4

    Missfire/Backfire at 45-55 mph

    Hey everyone, I've got an '89 K2500 with a 350 TBI and TH400 trans. More often than not, whenever I take my truck up to about 45, it starts sputtering and back/missfiring. It has never completely died out, it just backfires like there's no tomorrow. It won't go above 50. Throwing the truck in...
  5. O

    89 TH400 swap

    hey I pulled my th400 a little over a year ago and just got around to getting it rebuilt. Im almost done with the install and there’s a couple connectors I do not see a port for I’m usually pretty good about labeling but I must’ve missed these any ideas what they go too.
  6. virginiaguy76

    1990 K3500 work in progress

    Off the showroom floor. 1990 K3500 Silverado, 7.4, TH400. Finally at home, but the transmission, oil and water temps were just too high.
  7. BappleApple

    1990 C1500 700R4 to TH400 Swap (need help & experienced advice)

    Hey Guys! Been a while, but you ain't got rid of me yet ;) So my bestfriend & I are building his 1990 Chevy C1500 (Single Cab, LWB) that he bought as a roller. Truck originally had a 305ci & 700R4 from the factory (700R4/4L60 in 1990, call it whatever you want but still just a 700R4) We put a...
  8. Wh4t3v3rs

    The build of "Wh4t3v3rs"

    Wh4t3v3rs is a 98 Chevy short bed that's receiving a 6.0l turbocharged LS swap with a goal of 850hp and a mid to low 5 second 1/8 mile, all while retaining power steering and A/C. My LS is a LQ4 truck 6 liter with a stock bottom end. I will use the LQ4 heads with the Brian Tooley v2 trunnion...
    • Wh4t3v3rs
    • Thread
    • 3030 autosports btr cx racing ford 9" holley efi ls swap nos th400 twin turbo vs racing
    • Replies: 2,537
    • Forum: Street Build Threads

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