IV-8
06/04
©2004 Neapco Inc.
E
G
C
D
Major
Diameter-
Ground
Centerline
Boxed
Tooth
Hub
Length Thru
to End
Maximum
Yoke
End Yoke
Flinger
End Yoke
Count
Diameter
Bore
of Hub
Angle
Type
Part Number Part Number
Assembly
N1310 Series
use Kit No. 1-0153
A-3.219
B-1.063
1.125 - 10 Spline
1.125
1.550
1.500
3.000
13
O
CV
N2-4-4051
N330699
1.146 - 26 Involute Spline
1.146
1.550
1.500
3.000
22.5
O
UB
N2-4-8081
N41498
1.146 - 26 Involute Spline
1.146
1.550
1.500
3.000
13
O
CV
*
1.209 - 27 Involute Spline
1.209
1.520
1.480
3.060
—
BS
—
—
Used on 1983-2002 GM Full Size Trucks
OE #46002007
1.235 - 28 Involute Spline
1.235
1.812
2.420
4.030
25
O
UB
N2-4-FD01
NFD01
OEM# D4TZ-4851D
1.250 - 10 Spline
1.250
2.000
1.750
3.280
30
O
UB
N2-4-2901
N2-68-51
1.276 - 29 Involute Spline
1.276
1.875
1.500
2.940
18
O
UB
N2-4-3791
N34592
1.312 - 30 Involute Spline
1.312
1.940
1.150
3.160
20
O
UB
N2-4-GM03 NGM03
Replaces OEM# 3988524
1.328 - 30 Involute Spline
1.328
1.740
1.190
2.590
25
O
UB
N2-4-GM01
NGM01
Replaces OEM# 3996118 OEM# 3878972
1.401 - 32 Involute Spline
1.401
2.125
2.000
3.440
22
O
UB
*
1.401 - 32 Involute Spline
1.401
1.875
2.000
3.880
13
O
CV
*
* - Part not serviceable
SPLINED BORE
E
A
D
G
C
B
OEM Yoke is threaded for bearing straps. The Neapco replacement is U-bolt construction.
CV Constant Velocity end yoke. Use 37050X Nyloc® Socket Head Cap Screw Kit
BS Bearing Strap end yoke. Use 1-0022 Bearing Strap kit
UB U-Bolt end yoke. Use 1-0089 U-bolt kit
Part number ending in “X” includes flinger or welch plug
UB, BS, CV Construction