Tech Info

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Tech Writings


Read a reprint of a Tom's article
in Jrations magazine. Click here to download the PDF
(486 Kbytes)

Installation Instructions

Tech Drawings

 


Drive Shaft Nomenclature


cv_angle.gif (7167 bytes)

2joint_angle.gif (8148 bytes)


Spline Differences

horz_vs_length.gif (30109 bytes)

path.gif (3333 bytes)
Drawing illiterates elliptical path of universal joint from end
view while operating through drive shaft angle.

calc_angle.gif (11118 bytes)

 

TORQUE SPECIFICATIONS
THREAD SIZE SAE GRADE 5
75% YIELD STRENGTH (PSI) =69000
SAE GRADE 8
75% YIELD STRENGTH (PSI) = 98000
PLAIN
Ft. Lbs.
ZINC PLATED
Ft. Lbs.
PLAIN
Ft. Lbs.
ZINC PLATED
Ft. Lbs.
1/4 - 20 9 10 13 14
1/4 - 28 10 12 15 16
5/16 - 18 19 21 27 29
5/16 - 24 21 23 30 33
3/8 - 16 33 37 47 52
3/8 - 24 38 42 54 59
7/16 - 14 53 59 76 83
7/16 - 24 60 66 85 93
1/2 - 13 82 90 116 127
1/2 - 20 92 101 131 144
9/16 - 12 118 129 167 184
9/16 - 18 131 144 186 205
5/8 - 11 162 179 231 254
5/8 - 14 184 202 261 287
3/4 - 10 288 317 409 450
3/4 - 16 322 354 457 503

Note: Most drive shafts shown in photos are polished and clear coated, this finish adds $25 the cost. We only recommend the polish & clear coat for show vehicles or very dry climates.
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