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01-17-2013, 10:57 AM
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Senior Member
 
Join Date: Jul 2001
Location: Wellington, Ks
Posts: 10,295
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1971 K10 Rear Axle ?
Doing a swap on my '71 K10, orginally sm465/np205. Going to a 350TH/np205 which has created some issuses of changing slip yokes and such. Nothing time and money hasn't been able to overcome. As I was under the truck I scraped and cleaned the rear axle housing and found the following:
TAY W 3642 stamped in the top right side of the rear housing. Can someone fill me in on the rest of the axle code? I have a Red Book that shows TAY as a 3.07:1 ratio. Running 31x10.50x15's on 8'' rally wheels. Being a 4x4 I would have thought it would have a taller gear such as a 3.73:1 or such. As far as I know the axles have never been changed, bought the truck in '84, was really beat. Again, nothing time and money hasn't been able to overcome. 
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1971 Chevy 1/2T 4x4 LWB 350 V-8 Was sm465-now 350TH/np205 Tilt, Tach, Towhooks Original Truck AM/FM Wellington, Ks |
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