If you check the Sale Grammar website and the proposed Admission Policy for 2015, you will see that it only makes note of the fact that there will be a VR, NVR and maths examination (as in previous years):
"The Sale Grammar School Entrance Tests consist of Verbal Reasoning, Non Verbal Reasoning and Mathematics questions, set and standardised by our service provider."http://www.salegrammar.co.uk/files/user ... Policy.pdf
Usually, in areas where the new CEM assessment (Centre for Evaluation and Monitoring) is used for 11+ exams, you would spot a 'numerical reasoning' exam in place of just a 'maths' exam and most schools using CEM also suggest that you cannot prepare children for these exams (as they test core maths & English skills).
To date, GL Assessment has been the service provider for Sale Grammar and if this did change you would be informed about it at the parent information meetings. There is a big overlap of skills required for GL Assessment and CEM tests.