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We recommend flange yokes at the transfercase because the yoke sits inside the transfercase and a lot of times if a yoke fails it will split the transfercase. A companion flange will not do that. It is a stronger option than a yoke and provides a clean installation.
Companion Flange - Splined Bore 1410 series, Ø1.326x30 spline, Ø2.125 hub diameter 4 Drilled Holes on 4.750BC, Ø3.750-F pilot |
We designed this 1410/1480 series companion flange to fit the 30 spline front output shaft common on GM NP203 and NP205 transfer cases in the 70s and 80s. These flanges use a larger hub diameter than the stock yokes and 3R CV flanges used originally, so a different seal will likely be needed. For cases with a 3.061' seal bore, use TIM-473468, NAT-473468, or CR-21211.
U-Joint Series | 1410/1480/1550 | |
Spline Major Diameter | D | 1.326 |
Spline Count | 30.000 | |
Spline Type | Involute Spline | |
Pilot Bore Diameter | C | 3.750-F |
Bolt Circle Diameter | B | 4.750 |
Bolt Circle Hole Diameter (D = Drilled, T = Tapped) |
.506 D | |
Number of Holes | 4.000 | |
Brake Pilot Diameter | 0.000 | |
Ground Hub Diameter | E | 2.125 |
Length Thru Bore | F | 2.000 |
Flange Face to End of Hub | G | 2.500 |
Bare Flange Part Number (if assembly) | ||
Slinger Part Number (if assembly) | Can use ROK-DEFR34-1 (not included) | |
Notes |
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Items returned to busted knuckle off-road will receive a minimum 20% restocking fee if the reason for return is based on the customers actions (examples: no longer need, changed mind). Restocking fees are based on supplier fees and may vary.
Items may be returned within 90 days of shipment is unused and in original packaging. No items are able to be returned after 90 days from shipment. Returns are not accepted for parts that have been used or the original packaging is missing or damaged.
Shipping and freight costs are non-refundable.
Labor is non-refundable. Custom built items are non-refundable.
Warranty returns are void if the vehicle is used for racing or the damage is caused due to accidents or abuse.