4-3 Overdrive removal

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Oct 31, 2007 | 12:27 AM

racers50

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From: Bandon Oregon

4-3 Overdrive removal

Does anyone know if you can remove the o/d unit without removing the transmission??? 4 speed works fine but the clutches are burnt up on the O/D.

Oct 31, 2007 | 02:26 AM

rodj

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From: Australia

More than likely but it is such a pig to work around in the top of the tunnel and you have to remove the C beam and driveshaft anyway probably easier to remove the lot

Oct 31, 2007 | 09:28 AM

edoad

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You can not or it would be very difficult to reasemble the OD unit in the car. The side plate would have to come of the transmission. It is best to stand the transmission in a verticle position to reasemble.

Oct 31, 2007 | 11:11 AM

hmcquade

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From: BURTON MI

Quote:

Originally Posted by racers50

Does anyone know if you can remove the o/d unit without removing the transmission??? 4 speed works fine but the clutches are burnt up on the O/D.

I am having my OD replaced in my 84 and I was told the trans needs to come out.

Hugh

Oct 31, 2007 | 01:36 PM

jhammons01

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From: Irvine Ca

Quote:

Originally Posted by racers50

Does anyone know if you can remove the o/d unit without removing the transmission??? 4 speed works fine but the clutches are burnt up on the O/D.

Are you sure the clutches are burned on the OD unit? Did you go through the entire troubleshooting process for diagnosing the OD problem?

What makes you believe that the clutches are burned? (there are specific symptoms, Does your reverse still work?)

Trying to uncouple the OD unit from the tranny while they are still under them car is way more difficult that pulling out both (i.e. replacing the clutch). Once they are both on the tranny jack you can move them back and start your OD uncoupling.

Oct 31, 2007 | 09:18 PM

racers50

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From: Bandon Oregon

4-3 overdrive removal

I went through the symptom chart in the FSM and it indicated the clutches were bad.....O/D works perfectly but the car slips when trying to back up. Fine on flat ground but will not back up even a slight hill.
I shouldn't say fine on flat ground cause it will slip if you give it any gas at all.......

Nov 1, 2007 | 01:29 PM

jhammons01

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From: Irvine Ca

Just checkin'

sounds like you did you homework.

But why do you want to try to uncouple the OD from the tranny while it is still under there?

taking it all out in one unit is almost indistinguishable from pulling a regular manual tranny......

Once it is all out you can do your dirty work to the OD unit.

Nov 1, 2007 | 06:02 PM

racers50

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From: Bandon Oregon

4-3 overdrive removal

I am sure you are correct, I just thought since the tranny is fine, not having to undo all the linkage would be that much less to do..... I have the rebuild kit coming from eklers so I'll see how it goes....