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Here are my tips:

1) use 2 jacks. that lets you change the angle of the gearbox as required

2) make sure the rear of the motor is as low as possible. ie the rear of the head should be resting on the firewall

3) it will not go on the right way around. you will always need to twist it so that the starter motor housing clears the body. Once it has cleared you twist it back around to straight

4) the gearbox angle and motor angle must match perfectly. this is the biggest tip!

5) if they are lined up properly and not popping in, you may need to rotate the gears a little. this is because the splines on the input shaft have to match the splines on the clutch. this bit is luck! If you need to turn the gears a little put it in a short gear and turn the tailshaft or rear wheels (assuming they are off the ground!)

6) the gearbox angle and motor angle must match. I know I already said that but it's important! as you get closer it gets much easier to judge by how the flywheel compares to the front of the bellhousing. If the gap is bigger at the top vs bottom or right vs left it is not straight enough.

7) because of the spline alignment luck (#5) it generally goes in with a little clunk. When you hear that you have won!

8) once the box is within 2-5cm you can help it in using a big g clamp or 2 between the block and bellhousing. Once you are that close the input shaft is lined up OK and it is just the final adjustments. Never never force the box when the gap is large because you can bend the gearbox input shaft, which f**ks it.

good luck!

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is there a trick to getting the gear box on? or do we just need to keep trying to twist and push = feels close but just wont go in anyfurther

Most likely the clutch isn't aligned. I have a clutch aligning tool.

Also my tip for reinstalling the gearbox is leaning the engine back. You can loosing piping, exhaust and lean it back with a strap from a solid mounting point.

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fly wheel was bolted up clutch plate was put on while the aligning tool was on and holding it then then cover plated was bolted on - then the tool was removed - i also put it in and out to make sure was ok and was fine..

thanks duncan will be giving this a good crack tonight thanks

Most likely the clutch isn't aligned. I have a clutch aligning tool.

Also my tip for reinstalling the gearbox is leaning the engine back. You can loosing piping, exhaust and lean it back with a strap from a solid mounting point.

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I did it all on my lonesome..... not easy.

Try grinding off some of the rib over the starter motor, you will notice this bit is in the way just before it goes in, or you can bash the trans tunnel with a mallet.

I thought my clutch was mis aligned, but no, it was the thrust bearing had slipped and was catching on the shaft.

Now you see. NOW YOU SEE! (red dragon)

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yeah that was a proble we where having it was fouling on something - strugling to rotate the gear box and manover it in -

but duncan has given a few tips we will be trying tonight

nothing has been simple with this car

I did it all on my lonesome..... not easy.

Try grinding off some of the rib over the starter motor, you will notice this bit is in the way just before it goes in, or you can bash the trans tunnel with a mallet.

I thought my clutch was mis aligned, but no, it was the thrust bearing had slipped and was catching on the shaft.

Now you see. NOW YOU SEE! (red dragon)

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