FACTBOX: Bolivia's recall vote: Possible scenarios

LA PAZ (Reuters) - Bolivian President Evo Morales and eight opposition governors, including four demanding autonomy for their provinces, face a recall vote on Sunday. The leftist leader and most of the governors are expected to win.

Controversy surrounds the voting rules, raising the prospect of post-vote friction. The National Electoral Court says Morales needs 46.3 percent of the vote to stay in office, while the eight governors need more than 50 percent.

However, under the set of rules approved by Congress, governors need between 52 percent and 62.1 percent of the vote to survive.

Here are some of the possible outcomes from Sunday's vote:

MORALES AND OPPOSITION GOVERNORS ARE RATIFIED

* Morales and the governors keep their posts but remain locked in a power struggle as Morales seeks to push on with nationalization and land redistribution reforms and the governors press for autonomy for their provinces.

* A landslide Morales victory would likely prompt accusations of fraud from his rivals, given controversy over the rules. Protesters would likely take to the streets in opposition-governed regions.

* Morales and the opposition governors will need to negotiate a pact to end political deadlock that has forced Morales to put key reforms on ice. The right-leaning governors of Santa Cruz, Beni, Pando and Tarija provinces have forged an anti-government alliance.

MORALES IS RATIFIED, BUT SOME GOVERNORS LOSE

* If any of the governors lose, Bolivia's constitution says Morales can appoint an interim replacement, but he has promised to hold elections.

* Morales' supporters would stage protests if the governor of Cochabamba, a fierce Morales critic, refuses to give up his post if he loses. He has already said he would not accept defeat. Supporters of any governors who lose could also stage protests.

MORALES LOSES THE RECALL VOTE

* An unlikely scenario according to recent polls, but if Morales does not survive the vote he must step down and a new presidential election would take place within six months.

* If Morales follows through on his pledge to turn his back on politics if he loses and return to farming coca, a battle for the leadership of his Movement Toward Socialism party would ensue. There are no obvious successors.

* The governors' autonomy demands would gain momentum and they would press for the implementation of autonomy statutes approved in referendums earlier this year that Morales' government does not recognize. The statutes are designed to give the provinces more power and a greater share of state revenues.

(Reporting by Eduardo Garcia, Editing by Simon Gardner and Kieran Murray)