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173, 3 speed manual to 253, 3 speed. What needs to change ???

Hi Guys,

I want to swap the engine in my HJ ute from a 173 to a 253, but keep the 3 speed coloumn shift manual.
I want to keep it all as original as possible so don't want to move crossmembers etc.
What needs to change (driveline wise) ?
I was told that there is a V8 "version" of the gearbox and then everything else will marry up.

Does that sound right ?

Thanks,
Pete

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Comments

Yes. Everything will bolt straight in. I did this many years ago with a HQ ute.
I bought a 253, 3 speed sedan parts car and simply swapped everything over.
A parts car will be hard to find today, but it will make job easier because you have everything you need. (I paid $150 for mine, then sold what I didn't use for $100)
You need to swap the radiator, engine, gearbox, tailshaft, diff,exhaust system. I left the 6 cylinder suspension and brakes and never had any problems.
Then I put a five speed in it and sold the gearbox for $50.
David

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Old is good.

you CAN keep the six cylinder tailshaft and diff if you drive "normally" but as mentioned you'll need the v8 box, or failing that a v8 m20 input shaft and bearing retainer (what the throwout bearing rides on) can be fitted to your 6 cylinder box and ideally as that box is being fitted with a new bearing kit.

i bought a v8 3 speed box last year, just for the shifter and sold the box to a customer of mine that used it to do what you did - convert a 6 cylinder hj to a v8 (in his case a 300+hp 308) with column shift. he already had a salisbury diff so didnt need to swap that and the tailshaft.

also worth mentioning is when i was converting my hq wagon to a v8 in 2002 i scored a m22 box from a six cylinder one tonner which i intended to use with the 2.78 diff i was running, now i had scored also a v8 input shaft from an m20 however i didnt have the extended bearing retainer - i tried the six cylinder "short" one and had no issues with it. so it can be done at a pinch.

good luck.

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