203/205 Doubler Build Part 1 Np203 205 Doubler
The doubler in my truck at a idle of 800 rpm to show the yokes moving 6.69 first gear and 4:1 on the cases. I bought my kit from WMS and it was built to order and was a no brainer. My NP203 box is upside down and the NP205 is clocked flat. Call Casey ...