HELP! Dead Starter! Heavy Duty Worth It?

[MTU 50]

Went to start my car last night and all I heard was a fast whizzing noise. The starter just spins and doesn't engage.

So I am wondering if it is worth it to get a Heavy Duty starter(Hi-Torque model) or if a stock replacement will be okay. The most important thing to me is that the new starter is reliable. Keep in mind I have a relatively stock 91' GT with and AOD, and the car is going to remain this way for about 2.5 more years until I graduate from college. I was looking on the summit racing site and the cheapest one is $120.00, but most are higher. I just don't know if its worth it. Prices on carparts.com range from $65.00 for a remanufactured unit to $146.00 for a new replacement.

The bottom line is that I want a good reliable starter that I won't have to worry about.

Thanks

Jeff

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1991 GT, AOD, Moroso Cold Air, 3.73s, Pulleys, 3-chamber(the left one fell off-NO time+No Money=College), FMS c-springs, and KYBs