3100 UDP Belt size [Archive] - Grand Am Owners Club Forums

dmbprep69

03-12-2006, 10:46 AM

Well I am prolly gonna get my UDP put in this week sometime but i still have the question of the length of the serp. belt. I searched it and its been discussed but never directly answered with an actual size. I have the 3100 and got the udp from RSM so please lemme know what size belt i need!
Peace,
Andrew

nice96gt

03-12-2006, 11:23 AM

I don't think the RSM is an underdrive pulley is it? I thought it was just a lightened crank pulley?

Bjornboy81

03-12-2006, 03:14 PM

I think Ryan's right, but if it is and underdrive pulley you want to get a belt that's about 1-1.5" smaller than stock. :)

dmbprep69

03-12-2006, 04:02 PM

Yeah ur right, but exactly what size have people used? Thx
Peace,
Andrew

Bjornboy81

03-13-2006, 07:11 AM

So is it an UDP or Lightened?

dmbprep69

03-13-2006, 10:06 AM

Lightened Crank pulley

Bjornboy81

03-13-2006, 10:24 AM

whatever stock is :)

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