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Thread: 5.3 into a 1990 OBS with a 5 speed

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  1. #1
    Join Date
    Jan 2012
    Location
    DFW, TEXAS
    Posts
    594
    nice tbss, i was reading ur thread and i have done the same swap but went from 4.3 to 5.3 in my 07 classic. still kept the nv3500. do you have anymore clutch questions?

  2. #2
    I had gone a different route and was going to install a 4l60E but i really want to keep the 5 speed.
    I know i will need a flywheel from a 4.8l truck and i already have the throw out bearing and pilot bearing.

    That should be it correct?
    You know i still have to find the throw out bearing and pilot bearing
    I hope i dont have to buy them again.

    Oh yeah
    The TBSS was sold. Sad sad day
    Last edited by 99kon; 06-13-2012 at 09:03 AM.

  3. #3
    Join Date
    Jan 2012
    Location
    DFW, TEXAS
    Posts
    594
    keep the stick, unless u really wanted to change, i used my lightweight ls1 flywheel

  4. #4
    Join Date
    Jan 2012
    Location
    DFW, TEXAS
    Posts
    594
    Quote Originally Posted by 99kon View Post
    I had gone a different route and was going to install a 4l60E but i really want to keep the 5 speed.
    I know i will need a flywheel from a 4.8l truck and i already have the throw out bearing and pilot bearing.

    That should be it correct?
    You know i still have to find the throw out bearing and pilot bearing
    I hope i dont have to buy them again.

    Oh yeah
    The TBSS was sold. Sad sad day
    You can use any lsx flywhee that is the same diameter as the clutch u r using, i have the slock throw-out, and using a roller bearing for the 4.8l, but on selecting the disc make sure its a 10-spline for ur trans input shaft to match

  5. #5
    Thanks
    Ill get on this ASAP, plans for the weekend will be to remove the motor and clean up the engine bay again. Bolt up the trans to the motor and drop in the truck again.

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