Description
3502-0161U UDS 1350 series aluminum tri flange yoke for GM 6L80/6L90/8L90/10L80, TR6060, TR3160, 05-06 GTO. Dual 105mm/110mm bolt circle, 0.630″ pilot, 12mm bolts, 16mm nose hole.
3502-0161U UDS 1350 Series Aluminum Tri Flange Yoke — 105mm / 110mm Dual Pattern, GM Transmissions
The 3502-0161U is a 1350 series 6061-T6 aluminum tri flange yoke manufactured by UDS. It is compatible with GM 6L80, 6L90, 8L90, and 10L80 automatic transmissions, TR6060 and TR3160 manual transmissions, and the 2005-2006 Pontiac GTO differential side. The bolt circle diameter accommodates both 105mm (4.134-inch) and 110mm (4.331-inch) patterns with 6 x 12mm bolt holes and a 16mm nose hole. The pilot diameter is 0.630 inches and the CJ-to-flat dimension is 3.000 inches. Hole-to-hole measures 3.580 inches for 105mm and 3.750 inches for 110mm patterns.
Specifications
- Part Number: 3502-0161U
- Brand: UDS
- Series: 1350
- Pilot Diameter: 0.630"
- Bolt Circle Diameter: 4.134" (105mm) or 4.331" (110mm) — dual pattern
- Bolt Hole Diameter: 0.500" (12mm)
- Bolt Holes: 6
- CJ to Flat: 3.000"
- Notes: 6061-T6 Aluminum Tri Flange; 105mm BC hole-to-hole 3.580"; 110mm BC hole-to-hole 3.750"; 12mm bolt holes; 16mm nose hole
When fitting the 3502-0161U, confirm the GM transmission or differential uses either the 105mm or 110mm tri-prong bolt pattern with 12mm bolt holes and a 0.630-inch pilot. The 16mm nose hole is a centering feature — verify it aligns with the 16mm centering pin or boss on the companion flange. Use hole-to-hole measurement to confirm which of the two bolt circle patterns your application uses.
The 3502-0161U uses 12mm bolt holes with a 16mm nose hole, distinguishing it from the 3502-0145U (14mm bolt holes, 14mm nose hole) which covers the same 105mm/110mm dual pattern. Confirm both bolt hole size and nose hole diameter before selecting between these two part numbers for your GM application.
| Partn number | 3502-0161 |
|---|---|
| Pilot dia | 0.630 |
| Bolt circle dia | 4.330 |
| Bolt hole dia | 0.500 |
| Series | 1350 |
| Brand | UDS |
| Notes | Aluminum 6061-T6 Tri Flange, 105mm (4.134) and 110mm (4.331) bolt circle spacing, 12mm bolt holes, 16mm nose hole, Hole to hole: 105mm BC = 3.580″, 110mm BC = 3.750″ |
| Bolt Holes | 6 |
| Cj to flat | 3.000 |
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