Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_44 (grid INTEGER, laps VARCHAR, driver VARCHAR)

### Question ###
When the driver is Juan Manuel Fangio and laps is less than 39, what is the highest grid?

### Accurate SQL ###

SELECT MAX(grid) FROM table_name_44 WHERE laps < 39 AND driver = "juan manuel fangio"