ONLY $549.99 AFTER REBATE!! ATOR is having their annual DOUBLER SALE for the month of EDIT: JUNE!!!. Get $100 off any custom doubler kit by using the promo code ck5. Your kit will be custom clocked and precision welded to your specifications...delivered within 3 weeks. ATOR makes their adapters out of solid welded steel not several aluminum parts. This is so you spend your day behind the wheel not under the hot rig attempting to tighten loose bolts and stripping out threads! These are the finest doubler adapter kits made!! Get yours now...they will never be priced lower!! Included is an 8620 Billet mainshaft to connect your NP203 to the NP205 or D300. These shafts are heat treated 8620 gear steel; they are super strong and made in the USA. We do NOT respline factory shafts. Available in 23, 31 or 32 spline. Shipping is calculated before you pay and usually runs from $22-34. Oh yeh....these are 100% made in America! GO HERE TO ORDER YOURS NOW!!