A quick run through Promash yeilds the following. My guess is that you will not get all the sugars from the pale malt that are needed and if you can ferment down to 1.008 you will be doing very well.
A ProMash Recipe Report
Recipe Specifics
----------------
Batch Size (Gal): 5.50 Wort Size (Gal): 5.50
Total Grain (Lbs): 6.00
Anticipated OG: 1.039 Plato: 9.68
Anticipated SRM: 6.6
Anticipated IBU: 0.0
Brewhouse Efficiency: 70 %
Wort Boil Time: 60 Minutes
Formulas Used
-------------
Brewhouse Efficiency and Predicted Gravity based on Method #1, Potential Used.
Final Gravity Calculation Based on Points.
Hard Value of Sucrose applied. Value for recipe: 46.2100 ppppg
% Yield Type used in Gravity Prediction: Fine Grind Dry Basis.
Color Formula Used: Morey
Hop IBU Formula Used: Tinseth
Tinseth Concentration Factor: 1.30
Grain/Extract/Sugar
% Amount Name Origin Potential SRM
-----------------------------------------------------------------------------
50.0 3.00 lbs. Generic DME - Light Generic 1.046 8
33.3 2.00 lbs. Pale Malt(2-row) America 1.036 2
16.7 1.00 lbs. Crystal 20L America 1.035 20
Potential represented as SG per pound per gallon.
Yeast
-----