Strap Kits

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1-1945 driveshaft part image - 1-1945 – Strap Kit – Bolt Length 0.75" – Bolt Torque 52 ft-lb – Center To Center 2.5
$14.57
Max: 12
Min: 1
Step: 1
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1-1945
1610
0.75
52 ft-lb
2.5
1.875
.375-24
4870-20 driveshaft part image - 4870-20 – Strap Kit – Bolt Length 1.5" – Bolt Torque 25-30 ft-lb – Center To Center 1.925
$14.57
Max: 29
Min: 1
Step: 1
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4870-20
1485
·
1555
1.5
25-30 ft-lb
1.925
1.375
.312-24
6.5-70-18X driveshaft part image - 6.5-70-18X – Strap Kits – 1710, 1760, 1810 Series – Fits Cap Dia 1.938
$15.78
Max: 31
Min: 1
Step: 1
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6.5-70-18X
1710
·
1760
·
1810
1
125 ft-lb
2.806
1.938
.500-20
1-1946 driveshaft part image - 1-1946 – Strap Kit – Bolt Length 1" – Bolt Torque 125 ft-lb – Center To Center 2.812
$17.01
Max: 13
Min: 1
Step: 1
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1-1946
1710
·
1760
·
1810
1
125 ft-lb
2.812
1.938
.500-20
N90-70-28X driveshaft part image - N90-70-28X – Strap Kit – Bolt Length 0.75" – Bolt Torque 52 ft-lb
$18.20
Max: 35
Min: 1
Step: 1
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N90-70-28X
SPL100
·
SPL90
0.75
52 ft-lb
2.312
1.625
.375-24
140-70-18X driveshaft part image - 140-70-18X – Strap Kit – Bolt Length 984" – Bolt Torque 115 ft-lb – Center To Center 3
$25.50
Max: 14
Min: 1
Step: 1
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140-70-18X
SPL140
984
115 ft-lb
3
2.362
M12 X 1.25 6G
250-70-18X driveshaft part image - 250-70-18X – Strap Kit – Bolt Length 984" – Bolt Torque 115 ft-lb – Center To Center 3.444
$25.50
Max: 20
Min: 1
Step: 1
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250-70-18X
SPL250
984
115 ft-lb
3.444
2.362
M12 X 1.25 6G
170-70-18X driveshaft part image - 170-70-18X – Strap Kit – Bolt Length 984" – Bolt Torque 115 ft-lb
$26.70
Max: 15
Min: 1
Step: 1
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170-70-18X
SPL170
984
115 ft-lb
3.228
2.165
M12 X 1.25 6G
1-1930 driveshaft part image - 1-1930 – Strap Kit – Bolt Length 1.281" – Bolt Torque 32 ft-lb – Center To Center 1.938
$27.68
Max: 11
Min: 1
Step: 1
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1-1930
1485
·
1550
1.281
32 ft-lb
1.938
1.375
.312-24
350-70-18X driveshaft part image - 350-70-18X – Strap Kits – Fits Cap Dia 2.559" – Center To Center 3.938
$29.27
Max: 45
Min: 1
Step: 1
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350-70-18X
SPL350
1
188 ft-lb
3.938
2.559
M14x1.25-6g
3-70-48X driveshaft part image - 3-70-48X – Strap Kit – Center To Center 1.806" – Fits Cap Dia 1.188
$31.57
Max: 25
Min: 1
Step: 1
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3-70-48X
1350
1.806
1.188
M8 X 1.0
Category Information

A strap kit is the hardware set used to retain U-joint bearing cups on flange yokes and companion flanges that use strap-bolt retention rather than snap rings. Strap kits are standard on 1480-series and larger commercial truck U-joint applications, and on some 1350-series OEM installations. The strap bolts clamp a saddle plate over the bearing cup, preventing it from walking out of the bore under load — a retention method preferred for high-torque, high-shock applications where snap rings can fatigue and fail.

Strap kit selection:

Series — 1310, 1330, 1350, 1410, 1480, 1550, 1610, 1710 series kits are not interchangeable
Bolt grade — Grade 8 SAE or 10.9 metric. Never substitute lower-grade hardware in strap applications — the bolt is a structural retention element, not just a clamp
Quantity — a standard single U-joint replacement requires 4 straps and 8 bolts (2 straps per bearing cup, 2 cups per axis)

Strap bolts must be torqued to specification — undertorquing allows the strap to flex under load, and overtorquing yields the bolt and eliminates preload. Torque spec varies by series and bolt grade; see the individual product listing for the applicable torque value.