Quote:
Originally Posted by ta man
I learned my lesson twice about driveshafts. Lesson one snapped a factory cast input shaft. Lesson 2 ..I had a local shop build a 3.5 inch steel shaft with a 1350 spicer input shaft and a conversion u joint on rear...driveshaft had limited clearance where the transmission tunnel narrowed hated the damn thing. Finally did what I should have did years before Chrome moly input ,1350 u joints Chrome moly 3 inch driveshaft and chrome moly diff input..Would have been cheaper and easier on parts doing it right first..plus the Strange shaft with all the goodies is in my eyes a good value for the money. Oh and cheaping out first also cracked the transmission housing when the input snapped.
Your signature line says 600 ft/lbs...don't cheap out on the driveline.
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This. I also got the same driveshaft from Strange and I'll never have to be concerned about failure. You can look up a chart that shows the critical RPM for a given material, diameter and length to decide what you need.
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1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule.
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