th350 free revs in all forward gears

Discussion in 'The "Juice Box"' started by DCx, Jan 3, 2009.

  1. DCx

    DCx Well-Known Member

    i only have reverse in my th350. all other gears free rev like neutral.

    also reverse makes a noticeable shift, all other gears do not jerk. what could be wrong with the trans? flud is full and clean.

    im having a hell of a time finding a BOP replacement locally on craigslist.
     
  2. carmantx

    carmantx Never Surrender

    Did it just start doing this? Or has it been gradually getting worse, and now has got to this point.
    I am not a tranny guy, but I thought reverse and first were the same clutch pack.
    Sounds like the shifter could be out of adjustment? Make sure it is going in to gear correctly and check your vacuum modulator.
    Good luck.
     
  3. fireball

    fireball Well-Known Member

    Sounds like the forward clutch pack is fried. Check the fluid level and condition. If it smells burnt or is black in color, it is time for a rebuild. The forward pack is just that, it is only used then. Reverse uses the low/reverse clutch pack and the 3rd gear (direct) pack.
    A burnt direct clutch would result in only 1st & 2nd gear with no 3rd gear. It
    would then would slip in reverse as well. Since you are slipping in all forward speeds, it appears the issue is the foward clutch.
     
  4. DCx

    DCx Well-Known Member

    i never got to drive the car before i bought it. it had a few spun bearings. little did i know...
     
  5. oreilly64buick

    oreilly64buick Young Guys Like Old Cars2

    Hello,
    Juat wanted to drop in and say if needed, I rebuild 350 trannys and 700R4's. I am located in Terre HAute, In. I also rebuild engines as well. Been doing this for over 15 yrs, I do it on the side to help suplement my day job. Shipping on Trannys arent too bad, but engines can be tough, depending on locatins, I have driven to pick up. Let me know if I can be of any help. You may email me at oreillyasstman@yahoo.com
    Shawn
     
  6. d2_willys

    d2_willys Well-Known Member

    I agree, forward clutch is bad, and probably the rest too! REBUILD TIME!
     
  7. 1BadWagon

    1BadWagon i got too many parts.....

    as said before, forward clutch. make sure when you have it rebuilt, to have the stator support bushings (the 3 bushings in the pump) changed, not usually included in the overhaul kit. the bushing closest to the splines of the input shaft chews it up so you will probibly have to get a new input shat/forward clutch drum. also i would change both one way roller clutches because the springs wear out but they are cheap. turbo 350s are EASY to build so if your going to rebuild it your self, let me know if you have any questions. good luck:beers2:
     
    Last edited: Jan 8, 2009
  8. DCx

    DCx Well-Known Member

    anyone use a TCI chevy th350 adapter plate? im wondering if i should just buy a cheap chevy th350 and use the adapter.

    as soon as the car is running its going on craigslist or cheap to a user on here...
     
  9. RACEBUICKS

    RACEBUICKS Midwest Buick Mafia

    Just a question but did you bolt the flywheel to the converter?
     

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