Series 1251

Part No. 1202-181 (also written 1202/181) Flange Yokes, 1251 Series, Pilot Dia 1.811", Bolt Circle Dia 3.200

$47.60

In stock10 ready to ship

Most stock parts ship the same day when ordered before 2pm EST; processing times may vary.

Free shipping on parts orders over $1,000
14-day returns
Fitment help: (813) 524-6491

Specifications 1202-181 · 1251 Series Flange Yoke

How to measurePoint at a letter to read its measurement

Part number: 1202-181
Part type: Flange Yoke
Condition: New
Series: 1251
CJ to flat: 1.625
Bolt hole diameter: 0.400
Pilot diameter: 1.811
Bolt circle diameter: 3.200
Bolt holes: 4
Weight: 2.64 lb

Fitment

Send us the number off the old part and we will confirm the fit before you order.

All 1251 series parts All Flange Yokes Ask a driveline tech about fitment

Estimate shipping to your ZIP

Estimate shipping

Live UPS rates from our shop in Florida. Parts orders over $1,000 ship free — tubing and complete driveshafts always ship at the UPS rate.

Local pickup in Florida — free

About 1202-181

Understanding the 1202-181 Flange Yoke -- 1251 Series Application

Not every driveshaft terminates at a slip yoke. Many factory and performance builds use a bolted companion flange at one or both ends, and the 1202-181 is the correct 1251 series yoke for those configurations. It presents a 4-bolt pattern on a 3.200" bolt circle with 0.400" bolt holes and a 1.811" pilot, covering the dimensional requirements for a broad range of OEM and custom companion flanges.

Specification Summary

Specification	Value
Series	1251
Bolt Circle Dia	3.200"
Bolt Holes	4
Bolt Hole Dia	0.400"
Pilot Dia	1.811" (pilot)
CJ to Flat	1.625"
Material	Forged Steel
Brand	UDS
Part Number	1202-181

Series Ratings and Torque Capacity

Series 1251 represents a specific u-joint cross size and load rating. Running a mismatched series component downstream of a 1251 u-joint creates an unbalanced failure point -- the weakest link defines when and where the drivetrain breaks. The 1202-181 is designed as a native 1251 series component, so the cap bores match the cross dimensions and the torque path remains consistent from u-joint to flange face.

Assembly Guidance

Seat the 1.811" pilot fully before torquing -- do not rely on bolts to draw the yoke into alignment
Distribute bolt load evenly through at least three torque passes
Apply thread-locking compound on fasteners exposed to vibration (off-road, high-RPM)
After initial drive, re-check bolt torque -- new joints settle slightly during first use
CJ-to-flat dimension of 1.625" must clear u-joint lock ring or snap ring groove

Ordering Confidence

If you have confirmed that your companion flange has a 3.200" bolt circle, 0.400" bolt holes, and a 1.811" pilot bore (see specs), the 1202-181 is the direct match. Universal Driveshafts stocks this part for immediate dispatch to get your vehicle back in service without delays.

Need help with fitment? See our flange yoke guide for bolt patterns, pilots, and measuring tips.