[asperformance]

i would NOT recomend a 5w40 in a reasonably used classic.................

ideally min. 10w40 and we always use a full synth race oil although in theory you can use a semi-synth (your money, your engine, your choice at the end of the day)
as for gear oils, depends how its driven but 75w90 regardless (unless drag use, etc.) and we stock a number of options/price points from Millers/Motul and Castrol driveline............

always have forum deals for members and reguarly have no problem being better priced than other dealers "specials"