Buying a replacement gearbox online - what are the risks?

I bought a 2002 Nissan Almera a few months ago, whilst we had torrential rain and gale force wind for weeks. When the weather got better, I realised the car was making a metal grinding/scraping noise. Last weekend after a long drive the scraping noise got louder and now I have problems getting it into first gear and reverse.

I took it to a garage and was advised that it's a problem with the gearbox and the clutch. Does this sound right to you? I'm very upset as I have a low income and will have to borrow money to rectify the problem. I would be really grateful of any advice you can offer. I have found a gearbox being advertised on internet auction sites for £100 and a clutch kit for £50. Should I get these and arrange a fitting?

Asked on 23 May 2014 by Moonsun78

Answered by Honest John
The diagnosis reads correct. But the price of the replacement gearbox and clutch kit read suspiciously cheap, so be suspicious. The box will be from a scrapper so could have the same faults.
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