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Motor Adaption

Tech talk for Hilux

Moderators: toaddog, Elmo, DUDELUX

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Motor Adaption

Post by bubs »

This goes to all people who are up on the toyota gearboxes and bellhousings

ok i am running 21R-C with Diesel 4 Speed Gearbox then Hilux Transfer

Gearbox to t-case is a no brainer but the motor to gearbox i am unsure as to what bellhousing, clutch and flywheel i will require

can i use the 18R bellhousing on my petrol gearbox on the diesel (asking cause i havn't picked up the diesel gearbox and haven't pulled petrol gearbox of 18R motor i have)

and for a clutch i can then use the 18R one right

so anyone able to fill me in on what i need to do?
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Post by RUFF »

You cant use the deisel gearbox behind a petrol engine at all.

The 18R petrol gearbox will bolt straight up as long as you use the 21R flywheel.
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Post by bubs »

why cant i use the diesel gearbox tony?
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Post by RUFF »

Because they dont bolt up to petrol engines!
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Post by bubs »

is the bellhousing built on to the box on the diesel?
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Post by RUFF »

Your brother has one go look. It wont fit!
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Post by RUFF »

Why do you want to use the deisel box for anyway?
Why not just use the petrol box?
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Post by bubs »

i have been lead to believe the diesel was stronger - if it can't be done it can't be done

have both boxes
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Post by RUFF »

Yes you have been lead to beleive this and as i have told you many times they are both weak.

But this wont be a problem with a 21R.
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Post by RUFF »

If it was a real good option i could make an adapter to fit the deisel box behind the Petrol engine but it would take a lot of time and effort and i dont realy think it is worth it. The box is old and i beleive it to be weaker than a G52. I have seen way too many deisel 4spd fail. Especialy when behind V8 engines.
I beleive the 5spd is a better option and at least then you will be able to run just about any engine in front of this as bellhousings are basicaly all interchangable.
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Post by bubs »

i will use the petrol one for ease then for now till i decide on a which motor i want to eventually runn - who knows i have thought of rebuilding the 21R - i am going to put a new timing chain and guides on and need the gaskets to reassemble to motors so it might get rings as well.

so basicly i will decide what gearbox to run when i decide which motor i will run all the time
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Post by POS »

So Bubs, did you listen to one word that Ruff just said????? :roll: :roll: :roll:
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Post by bubs »

yes adrian :finger:
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Post by bj on roids »

RUFF wrote:Yes you have been lead to beleive this and as i have told you many times they are both weak.

But this wont be a problem with a 21R.


this is my favourite quote! They are both weak, the 21R is weaker :D
hands and mums dont count!!!
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