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Old 08-09-2009, 04:49 PM   #1
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Removing Manual Transmission

Busted my tail shaft. Can I remove the 4-speed from the car with it on jackstands, or do I need it on a hoist?

If I need it on a hoist, looking for a shop between Long Beach and Huntington Beach in SoCal.

Thanks, in advance. George
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Old 08-09-2009, 05:23 PM   #2
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Yes - you can put the car on jackstands in order to remove the transmission. You'll want to have a small hydraulic jack to support the engine.

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Old 08-09-2009, 09:48 PM   #3
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If you can get it high enough to work under it. Just be safe. Unbolt the drive shaft. support the engine with a jack, remove the the rear transmission cross member. unbolt the transmission and slide it out. unless your strong as an ox I would get a friend to help.
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Old 08-10-2009, 07:58 AM   #4
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As long as you have a removable cross member its not really a huge job. I have taken the tranny out of my car three times using a floor jack and jack stands. The key is to use a strong buddy. I usually brib mine with pizza and beer. Make sure to get the car as high as you can on the floor jacks. Once you have the car up on jacks stands use the floor jack under the tranny to help support it as you take it out. Getting the tranny out of the car is the easy part. Getting it back in the car is the hard part. Getting the tranny up on the jack stand and position at the correct angle to slide into the bell housing and clutch takes some work.
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Old 08-11-2009, 01:09 PM   #5
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Quote:
Originally Posted by lswartzi View Post
As long as you have a removable cross member its not really a huge job. I have taken the tranny out of my car three times using a floor jack and jack stands. The key is to use a strong buddy. I usually bribe mine with pizza and beer. Make sure to get the car as high as you can on the floor jacks. Once you have the car up on jacks stands use the floor jack under the tranny to help support it as you take it out. Getting the tranny out of the car is the easy part. Getting it back in the car is the hard part. Getting the tranny up on the jack stand and position at the correct angle to slide into the bell housing and clutch takes some work.
We also mark the position of the drive shaft for balancing but in your case it may not be nessary with a broken tail shaft.

Take a picture of the linkage hook up if you need to.
Most cars with a 4 speed do not have a removable crosshaft so it may be difficult to move the trans back in the tunnel to get the front of the trans to clear the bell housing opening. So you may have to unbolt the bell housing also.
Good time time to check clutch.

To help line you the trans on installation use two bolts with the heads sawed off in the bell housing as alignment dowels.
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Old 08-11-2009, 02:11 PM   #6
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Just pulled mine... 1970... stock Muncie... non-removeable support.

Remove driveshaft.

Remove all linkage, wires, cables completely.
Anything that is bolted to the trans will mess you up when you start wiggling it around... even the levers.

I removed the reverse light switch as well to avoid damaging it... but oil will pour out unless you plug the hole.

Support engine at rear of oil pan... NOT the bell housing.
You will very likely need to service the clutch (remove the bell housing).

I used a scissors jack and a concrete block.

Pull the trans back away from the engine, rotate it so it will slide further back between the cross-member and the floor pan,

Drop the engine down slightly to gain clearance for the trans input shaft (not too far or you can break things up above)

Once the tranny nose wiggles past the bell housing, raise the engine back up.

Slide the trans down & out towards the front.
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Old 08-11-2009, 06:57 PM   #7
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Thanks guys for the help, now all I need is the strength. George
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Old 08-11-2009, 07:12 PM   #8
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I would prefer to do it the way Vtech does it in his avatar.
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Old 08-11-2009, 07:16 PM   #9
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removing manual trans

Have to agree with Mattydale, It canbe done. Some good heavy duty jack stands and a strong friend, it also helps if he knows what he's doing. And yes its harder linging up the clutch. Get that driveshaft balanced prior to re-install. good luck
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Old 08-12-2009, 05:30 AM   #10
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Yes.... 4 heavy duty jack stands. Two in front on the stabilizer bar mounts at the frame... yes it will get scratched... mine is rusty... and two on the frame box just in front of the rear wheels. You do need a lot of height to get the trans out. I did it by myself... I'm not an ape, but I have a lot of willpower.
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Old 08-12-2009, 05:54 AM   #11
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Why not just use a transmission jack? It would make the job a whole lot easier.
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Old 08-12-2009, 06:06 AM   #12
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Quote:
Originally Posted by Junkman2008 View Post
Why not just use a transmission jack? It would make the job a whole lot easier.

Not every one has a transmission jack, but they can be rented. One would have to raise the car higher to use a jack.
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Old 08-12-2009, 09:07 AM   #13
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Quote:
Originally Posted by Junkman2008 View Post
Why not just use a transmission jack? It would make the job a whole lot easier.
A transmission jack will not help... cannot be used to drop a Muncie out of a C2/C3 with a non-removeable crossmember.

The trans has to be rotated by hand in order to get it to slide back over the crossmember, then tilted down at a 45 angle, rotated, twisted and pulled forward out of the car. It's just one of those things that we have to deal with. The issue is the non-removeable crossmember. If the crossmember could be unbolted and removed, then a transmission jack would work fine. I have a transmission jack.

Automatics had the removeable crossmember.

It was a popular mod to air chisel out the factory crossmember and weld in an aftermarket kit with a removeable center section.
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Old 08-12-2009, 09:10 AM   #14
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Quote:
Originally Posted by Mattydale View Post
... It was a popular mod to air chisel out the factory crossmember and weld in an aftermarket kit with a removeable center section.
Good grief! I can see why!
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Old 08-12-2009, 12:55 PM   #15
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A word of caution. Place a block of wood on top of the jack you use under the oil pan.
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