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chazh2616's avatar
chazh2616
Explorer
Jun 04, 2013

Transmission Help

Hey gang, here's my issue. Bolted my rebuilt GM 4l80e trans in today replacing the original TH400, my research says lots of parts interchageable with the two including the tail housing which has the parking park assembly attached.

All went well until I was ready to slide the tail housing into the output shaft, bottoms out about 2" short of bolting to to trans. I have the EZ-TCU to control the electronics, still debating the speedo issue, understand that drive shaft needs shortening. Ready to bolt on Thorley headers and Magnaflow mufflers but none of it matters until I resolve this issue.

86' Holiday Rambler Imperial built on the P-30 chasis, doner trans a '96 model. HELP
Class A
  • chazh2616's avatar
    chazh2616
    Explorer
    Jun 04, 2013
    Gale, I have the tail housing from the '96, I have to determine if the emergency brake assembly will attach to it. My drive shaft attaches to the back side of the emergency brake assembly, that's todays project.

    Crasster, the EZ-TCU is a stand alone trans controller that attaches to the electronic ports of the trans to control shift points, etc, it's a hand held unit that allows some customization of the trans performance. Appears to be used a lot in custom and street rod trans upgrades.

    Thanks for the input
  • crasster's avatar
    crasster
    Explorer II
    Jun 04, 2013
    How are you going to use the EZTCU? Doesn't that require to sync up with the OBD II of a 96+ year vehicle?
  • Gale_Hawkins's avatar
    Gale_Hawkins
    Explorer
    Jun 04, 2013
    Just get your hands on the front end of a drive shaft that will fit the 96 and fit it to your driveshaft.
  • popeye766's avatar
    popeye766
    Explorer
    Jun 04, 2013
    Not really familiar with these parts, but if you are using TH400 tailshaft on 96 trans , probably wont work...mismatched parts...that's all I can say not knowing more.....

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