Belt size

[ron2shel]

Greetings. First of all I apologize if I posted this in the wrong thread. I'm currently running a set off BBK underdrive pulleys, crank, water and alternator. I want to put my stock alternator pulley back on to hopefully eliminate the battery voltage drop when at idle. What length belt would I need for a 1995 mustang gt. Appreciate your help, thanks

 

[KRUISR]

Get an old belt, cut it, route it how you want and measure how long it needs to be. Take that measurement to local parts store and ask for a serpentine belt that is XX inches long (car brand should not matter). If you don't have an old belt you can use some string.

 

[Noobz347]

Better yet, put [all] of the OEM pulleys back on and use a stock-length belt. Underdrive pulleys cause more harm than good on street cars.