Thousands of West Ham fans will march behind hearses to protest against the club’s board.
The Hammers last night sacked head of player recruitment Tony Henry over allegations of racism.
But 37 supporters’ groups have joined forces under the banner West Ham Groups United and plan to hire 20 hearses to lead a demo to the London Stadium before the home game against Burnley on March 10.
Spokesman Andy Swallow said: “West Ham is in one of the most multi-cultural areas of the country.
“People talk about Cyrille Regis at West Brom, but Clyde Best and Ade Coker were at the forefront for black footballers in this country in the 1970s at West Ham.
“For there to even be a whiff of suggestion that there is racism in our club tarnishes our good name and we want to let people know that.
“At West Ham there are only two colours — claret and blue.”
Fans are also angry at the way their club is being run and will lay wreaths at the Olympic Park in Stratford to symbolise what they feel is the ‘death’ of their club’s heritage.
They are liaising with local police to get the event officially authorised and a fund-raising effort raised £14,000 within the first 48 hours.
Anti-board supporters feel the move from West Ham’s old Upton Park ground to the former Olympic Stadium has been a disaster.
They believe they were hoodwinked by empty promises made by joint-chairmen David Sullivan and David Gold.
Swallow added: “We’re confident we’ll get 10,000 turning up. It’s a peaceful demonstration and a show of unity that we want our club back.
“In an ideal world, the board would sell up and let someone else do a better job for West Ham.
“What we want is for them to admit they have made a big mistake with the stadium and the way things are being run and to come up with a plan to save our club.
“But that’s unlikely to happen.”
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Even the redesigned club badge — which had ‘London’ added — is being seen as undermining West Ham’s heritage.
And many disgruntled fans believe they are being short-changed over player signings.
Hammers broke their club record to get Marko Arnautovic from Stoke for £23million last summer and brought in Preston’s Jordan Hugill for £8m in January.
But they also banked around £26m selling Andre Ayew and Diafra Sakho.