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  #1 (permalink)  
Old 08-02-2023, 07:08 PM
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Originally Posted by xb-60 View Post
... The only acceptable solution is to use a Tremec TKX gearbox. Gear ratios are close enough to the Toploader to not be a concern, and then there’s the overdrive at 0.81:1, which I don’t need because of my high diff. ratio, but that’s OK.
Good news is that the QT RM-6060 scattershield for the Toploader is good for the TKX; flywheel will be OK; clutch - most likely OK, and I’m relenting and going with an HTOB ...
Glen,

Sorry to hear that the Toploader linkage won't fit and you cannot use that gearbox. I know that is one of the features of the car you have been planning on using since the get go.

I have the TKO 600 with the 0.82 5th gear (OD) and a 3.54 diff, I have been very happy with that combination. The TKX sounds like the current version of the TKO 600 but with some upgrades. You will likely need to change the diff ratio if you want to take advantage of 5th gear OD.

What is prompting abandoning the external slave cylinder and going with an HTOB, space constraints ?

- Tim
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Old 08-03-2023, 11:49 PM
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Hi Tim.

It is somewhat irritating, to say the least, as it was known from the start that I would be using a Toploader. There was no contrary advice given.

However... the situation is what it is, and the TKX is a good gearbox, so onward we go.

The TKX 1st gear ratio at 2.87 is slightly shorter than the Toploader's 2.78, so it's hardly noticeable. Yes, my differential ratio is tall already, but it's a (relatively) big engine in a small and light car, so occasional forays into 5th gear will be useful in country cruising.

The concession to using an HTOB? It's simpler, as it will need no clearance holes in the side of the tunnel (and at this point, I'm looking for "simple"). I'll keep my fingers crossed that it lasts as long they say it will

Cheers!
Glen
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Old 08-04-2023, 01:57 AM
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... The concession to using an HTOB? It's simpler, as it will need no clearance holes in the side of the tunnel (and at this point, I'm looking for "simple"). I'll keep my fingers crossed that it lasts as long they say it will ...

Hi Glen,

Something to be said for just getting it done, you have had a lot of hurry up and wait, I bet you are more than ready for the project to be completed.

For the HTOB, as mentioned in previous posts, be sure to plumb in an accessible chafe prof flexible line, so that you can easily flush & bleed the system from time to time.

Hang in there, you are getting close!

- Tim
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Old 09-29-2023, 01:18 AM
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I am still here. So is my car
Of more interest, though, is that a positive update will be forthcoming soon.

Cheers!
Glen
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Old 09-29-2023, 10:28 AM
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I don't believe you.
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Old 09-29-2023, 04:59 PM
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I don't believe you.
I don't care
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Old 10-09-2023, 09:41 PM
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Here's the gearbox and scattershield temporarily mated.

Name:  Gearbox+scattershield.jpg
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Size:  94.7 KB

Currently waiting on a new clutch plate, as the item for the Toploader doesn't have the same spline as the input shaft on the TKX. Parts for 'unusual' cars are not available at the corner store here.

After clutch plate arrival, we can fit the exhaust primaries to the engine, as well as the scattershield, and then fit this 'unit' to the car. Then easy fit of the gearbox.

More when it happens

Cheers!
Glen
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