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| Chev/GMC
Rear Blocks & U-Bolt Kit |
2" Rear Block |
4" Rear Block & |
|
| & U-Bolt Part No. |
U-Bolt Part No. |
BUY NOW |
| Blazer, Jimmy Full -Size 4WD |
73-91 |
KB12 |
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| Blazer, Jimmy Full -Size 4WD |
73-91 |
|
KB40 |
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| Pickup 1/2, 3/4 ton 4WD |
69-72 |
KB02 |
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| Pickup 1/2, 3/4 ton 4WD |
69-72 |
|
KB43 |
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| Pickup 1/2 ton 4WD |
73-87 |
KB12 |
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| Pickup 1/2 ton 4WD |
73-87 |
KB22 |
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| Pickup 1/2 ton 4WD |
73-87 |
|
KB41 |
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| Pickup 1/2 ton, Blazer |
88-98 |
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KB44 |
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| Dodge Rear
Blocks & U-Bolt Kit |
2" Rear Block |
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| & U-Bolt Part No. |
|
BUY NOW |
| Pickup 1/2, 3/4 ton 4WD |
69-93 |
KB32 |
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| Ford Rear Blocks
& U-Bolt Kit |
|
2" Rear Block |
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| Year |
& U-Bolt Part No. |
|
BUY NOW |
| Bronco 4WD |
66-77 |
KB52 |
- |
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| Bronco 4WD |
78-96 |
KB92 |
- |
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| F100, F150 4WD |
67-96 |
KB42 |
- |
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| F250 4WD |
69-96 |
KB62 |
- |
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| Jeep Rear Blocks
& U-Bolt Kit |
|
2" Rear Block |
|
| Year |
& U-Bolt Part No. |
|
BUY NOW |
| Cherokee 4WD |
74-83 |
KB72 |
- |
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| Pickup 4WD 1/2 ton |
74-83 |
KB72 |
- |
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| Wagoneer 4WD |
74-83 |
KB72 |
- |
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| Rear Lift Block Sets |
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| U-Bolts |
Description |
Part No. |
BUY NOW |
| - |
none |
2"
Cast-Iron Blocks Pair 9/16" pin, 9/16" hole. |
BL202 |
|
| - |
none |
3"
Cast-Iron Blocks Pair 9/16" pin, 5/8" hole. |
BL302 |
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| - |
none |
4"
Cast-Iron Blocks Pair 9/16" pin, 9/16" hole. |
BL402 |
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| *For lifted
applications only. *Requires longer
u-bolts. *Bumpstop relocation
necessary. *May require drivshaft
modification. |
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| U-Bolt Set
Specifications |
Quantity of |
Thread |
Inside |
Inside |
|
| U-Bolts In Set |
Size |
Width |
Length |
Shape |
BUY NOW |
| BU40R |
4 |
1/2 |
2 3/4 |
8 |
R |
|
| CU20R |
4 |
5/8 |
2 3/4 |
11 5/8 |
Q |
|
| CU21F |
3 |
5/8 |
3 |
8 |
R |
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1 |
5/8 |
3 5/8 |
10 |
R |
|
| CU21R |
4 |
5/8 |
3 |
10 |
R |
|
| CU22R |
4 |
5/8 |
3 5/8 |
12 |
R |
|
| CU35R |
4 |
5/8 |
2 1/2 |
14 |
Q |
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| CU40R |
4 |
5/8 |
2 3/4 |
11 5/8 |
Q |
|
| CU41R |
4 |
5/8 |
3 |
12 |
R |
|
| CU53R |
4 |
9/16 |
3 |
7 1/2 |
R |
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| DU20F |
2 |
9/16 |
2 3/4 |
7 5/8 |
R |
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1 |
9/16 |
3 3/4 |
9 5/8 |
R |
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2 |
9/16 |
4 |
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| DU20R |
4 |
9/16 |
2 1/2 |
14 |
Q |
|
| DU21F |
4 |
9/16 |
2 1/2 |
8 1/2 |
Q |
|
| DU22F |
2 |
9/16 |
3 |
7 1/2 |
R |
|
| |
1 |
9/16 |
3 3/4 |
9 5/8 |
R |
|
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2 |
9/16 |
4 |
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| DU40F |
4 |
9/16 |
2 3/4 |
7 5/8 |
R |
|
| DU40R |
4 |
9/16 |
2 1/2 |
14 |
Q |
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| FU15R |
4 |
9/16 |
3 1/4 |
11 5/8 |
R |
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| FU25F |
4 |
9/16 |
3 |
7 1/2 |
Q |
|
| FU35R |
4 |
5/8 |
3 1/2 |
18 1/2 |
R |
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| JU19R |
4 |
1/2 |
2 3/4 |
6 1/2 |
R |
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| JU20F |
3 |
1/2 |
2 1/2 |
6 1/2 |
R |
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1 |
1/2 |
3 |
6 1/2 |
R |
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| JU20R |
4 |
1/2 |
2 3/4 |
6 1/2 |
R |
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| JU21R |
4 |
1/2 |
2 1/2 |
6 1/2 |
R |
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| JU22F |
3 |
1/2 |
2 5/8 |
6 1/2 |
R |
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1 |
1/2 |
3 |
6 1/2 |
R |
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| RU40R |
4 |
1/2 |
2 3/4 |
11 |
R |
|
| SU20F |
2 |
1/2 |
2 3/4 |
6 1/2 |
R |
|
| |
2 |
1/2 |
3 |
6 1/2 |
R |
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| SU40F |
2 |
1/2 |
2 3/4 |
8 1/2 |
R |
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2 |
1/2 |
3 3/4 |
9 1/2 |
R |
|
| SU40R |
4 |
1/2 |
2 3/4 |
8 1/2 |
R |
|
| TU20R |
4 |
9/16 |
2 5/8 |
7 1/2 |
Q |
|
| TU40R |
4 |
9/16 |
3 1/4 |
10 |
Q |
|
| TU20F |
2 |
9/16 |
2 3/8 |
7 1/2 |
Q |
|
| |
2 |
9/16 |
2 3/8 |
6 1/2 |
Q |
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| TU41R |
4 |
9/16 |
2 1/2 |
10 |
Q |
|
| WU20F |
2 |
9/16 |
3 1/2 |
9 1/2 |
R |
|
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2 |
9/16 |
3 |
7 1/2 |
R |
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| WU20R |
4 |
9/16 |
3 |
7 1/2 |
R |
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| WU40R |
4 |
9/16 |
3 |
9 1/2 |
R |
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| Individual U-Bolt Specs |
Diameter |
|
Width |
Length |
Shape |
BUY NOW |
| 40001 |
1/2 |
- |
2 1/2 |
6 1/2 |
R |
|
| 40003 |
1/2 |
- |
2 1/2 |
9 |
R |
|
| 40004 |
1/2 |
- |
2 1/2 |
10 |
R |
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| 40005 |
1/2 |
- |
2 3/4 |
6 1/2 |
R |
|
| 40006 |
1/2 |
- |
2 3/4 |
8 |
R |
|
| 40007 |
1/2 |
- |
2 3/4 |
8 1/2 |
R |
|
| 40008 |
1/2 |
- |
2 3/4 |
10 |
R |
|
| 40009 |
1/2 |
- |
2 3/4 |
11 |
R |
|
| 40010 |
1/2 |
- |
2 5/16 |
6 1/2 |
R |
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| 40011 |
1/2 |
- |
2 7/8 |
6 3/4 |
R |
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| 40012 |
1/2 |
- |
3 |
6 1/2 |
R |
|
| 40013 |
1/2 |
- |
3 |
8 1/2 |
R |
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| 40014 |
1/2 |
- |
3 |
9 1/2 |
R |
|
| 40015 |
1/2 |
- |
3 |
11 1/2 |
R |
|
| 40017 |
1/2 |
- |
3 3/4 |
9 1/2 |
R |
|
| 40018 |
5/8 |
- |
2 3/4 |
7 5/8 |
R |
|
| 40019 |
5/8 |
- |
2 3/4 |
11 5/8 |
Q |
|
| 40020 |
5/8 |
- |
3 |
8 |
R |
|
| 40021 |
5/8 |
- |
3 |
9 5/8 |
R |
|
| 40022 |
5/8 |
- |
3 |
12 |
R |
|
| 40024 |
5/8 |
- |
3 |
14 1/2 |
R |
|
| 40025 |
5/8 |
- |
3 |
16 |
Q |
|
| 40026 |
5/8 |
- |
3 1/2 |
14 1/2 |
R |
|
| 40028 |
5/8 |
- |
3 1/2 |
18 1/2 |
R |
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| 40029 |
5/8 |
- |
3 1/4 |
10 1/2 |
R |
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| 40032 |
5/8 |
- |
3 5/8 |
10 |
R |
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| 40033 |
5/8 |
- |
3 5/8 |
12 |
R |
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| 40034 |
5/8 |
- |
3 5/8 |
9 1/4 |
R |
|
| 40035 |
9/16 |
- |
2 1/2 |
7 1/2 |
Q |
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| 40036 |
9/16 |
- |
2 1/2 |
8 3/4 |
Q |
|
| 40037 |
9/16 |
- |
2 1/2 |
10 |
Q |
|
| 40038 |
9/16 |
- |
2 1/2 |
14 |
Q |
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| 40039 |
9/16 |
- |
2 1/4 |
8 1/2 |
Q |
|
| 40040 |
9/16 |
- |
2 3/4 |
7 5/8 |
R |
|
| 40041 |
9/16 |
- |
2 3/8 |
6 1/2 |
Q |
|
| 40042 |
9/16 |
- |
2 3/8 |
7 1/2 |
Q |
|
| 40043 |
9/16 |
- |
2 5/8 |
7 1/2 |
Q |
|
| 40044 |
9/16 |
- |
2 5/8 |
8 3/4 |
R |
|
| 40045 |
9/16 |
- |
2 9/16 |
11 3/8 |
Q |
|
| 40046 |
9/16 |
- |
3 |
7 1/2 |
Q |
|
| 40047 |
9/16 |
- |
3 |
7 1/2 |
R |
|
| 40048 |
9/16 |
- |
3 |
9 1/2 |
R |
|
| 40049 |
9/16 |
- |
3 1/2 |
9 1/2 |
R |
|
| 40050 |
9/16 |
- |
3 1/4 |
10 |
Q |
|
| 40051 |
9/16 |
- |
3 1/4 |
10 |
R |
|
| 40052 |
9/16 |
- |
3 1/4 |
14 |
R |
|
| 40053 |
9/16 |
- |
3 1/8 |
9 |
Q |
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| 40054 |
9/16 |
- |
3 3/4 |
8 1/2 |
R |
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| 40055 |
9/19 |
- |
3 3/4 |
9 5/8 |
R |
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| 40056 |
9/16 |
- |
3 5/16 |
14 3/4 |
R |
|
| 40057 |
9/16 |
- |
3 1/4 |
11 5/8 |
R |
|
| 40058 |
5/8 |
- |
2 1/2 |
14 1/2 |
Q |
|
| 40059 |
1/2 |
|
2 5/16 |
7 |
R |
|
| 40060 |
1/2 |
|
3 1/4 |
6 3/4 |
R |
|
| 40061 |
1/2 |
|
2 1/2 |
9 1/2 |
Q |
|
| 40062 |
9/16 |
|
3 |
12 5/16 |
Q |
|
| 40063 |
9/16 |
|
2 1/2 |
12 1/2 |
Q |
|
| 40064 |
5/8 |
|
2 5/8 |
14 1/2 |
Q |
|
| 40065 |
5/8 |
|
2 5/8 |
12 1/2 |
Q |
|
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| Q = Square
U-Bolt. R = Round U-Bolt. NOTE:
All specs. Shown in inches. |
| NOTE: Indvidual U-Bolts include nuts and washers
shrink wrapped on cards. |
| WARNING: Correct U-Bolt length is critical to
vehicle safety. In general, 1/2"
of U-Bolts should extend fully beyond tightened nut. |
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