lumberg

Could anyone tell me the type of gearbox ive got in my 1987 XF falcon 3.3L it says on the id tag that it is a K gearbox i cant find any info any were anything would be great

AU dude

manual or auto? if its manual is it a 4-speed or 5-speed?

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lumberg

Yea Its a 5 speed Manual

AU dude

y do u need to know the type?

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lumberg

i want to do a v8 conversion just want to no if gearbox if got will hold up to a 302 windsor

atec77

not a very strong box and certainly wont last past a couple of v8 wheelies..

lumberg

True that sucks i heard it mite have been a t5 but if not all good i'll just got to c4 that should see me rite id guess

jas24zzk

Do this.
There are two 5 speeds in the XF's. One is a light box, one isn't.
Get the Slip yoke from a V8 toploader/C4/Single rail. and see if it fits your box. IF it does, then you have the stronger box which will hold up to a 302 quite nicely. (but then if you thrash it, nothing will anyhow)

Dellow Automotive can supply a bell housing for this box to go up to the 302...provided you have the heavier box.

Cheers
Jas

atec77

3.3 in the xe was the weak box , it might be stronger in the xf but I doubt it , will be interested to see .

lumberg

cheers guys ill let you wat the outcome is ...