The F25 can be used on the LET changing the Flywheel and clutch to the V6 one and i am sure the old F25 (Cally cav) where Cable driven i know vectras changed to Hydrolic (changing flywheel means 15kg flywheel and slow revs on the Let which u do not really need).
the reason why people do not use them is because the as basic the same as the F28 in size so you need all the new engine mounting and tiebar spacers to fit one, so people feel is there going to spend the money on the Extra bit to fit the F25 then they may aswell fit a F28.

Never heard of an F25 been used...

Just save up and get an F28, I know of some for £250ish I think...

F25 is the V6 box, not able to be used in place of F20 as far as I know.

it was fae a v6 cavy but to much work i think the mount is diff clutch is same but speedo is diff aswell so it will be another f20 me thinks

quote:

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Originally posted by aceman
no money for f28 offerd this cheap need ner box as this is the 2nd f20 i've eaten

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If the F25 is the on the Z20LET then yes it fits, but the clutch needs wapping from hydrolic to cable.
If it's the V6 gearbox it's abotu an icnh wider and doesnt.
I never can keep up with all the different boxes.

no money for f28 offerd this cheap need ner box as this is the 2nd f20 i've eaten

alot of people change these to either f20's or f28's... there gear ratios are supposed to be a bit poo...

as above i have a let funnig a f20 i know the f25 fits the engine but what about the engine mount is it the same or diff? never herd of one on a corsa so thought it must be harder than bing bang wolop:D