Gear ratio and diff question on 84 GMC

Posted by James on January 23, 2003 at 21:10:48 from (68.35.66.120):

I just dropped a 350 in my 84 GMC 1/2 ton RWD and I have a helluva lot more power than my tired 305. Turns out I can run 1st gear all the way up to 55mph :P My question's are: What gear ratio is in the truck now? What size diff do I have? I figure 3.73's would do the job, but I'm not sure what size diff I have. I'm guessing my gearing now must be somewhere in the 2.XX:1 range.

Thanks,
James

Follow Ups:

• Re: Gear ratio and diff question on 84 GMC FC 07:56:06 01/31/03 (0)
• Re: Gear ratio and diff question on 84 GMC Hillbilly Hotrodder 19:53:13 01/30/03 (1)
  • Re: Re: Gear ratio and diff question on 84 GMC James 20:49:47 01/30/03 (0)
• Re: Gear ratio and diff question on 84 GMC SteveB(wi) 20:49:34 01/24/03 (1)
  • Re: Re: Gear ratio and diff question on 84 GMC Pappy 00:08:40 02/08/03 (0)
• Re: Gear ratio and diff question on 84 GMC iceman 09:34:07 01/24/03 (0)
• Re: Gear ratio and diff question on 84 GMC Ray 04:47:42 01/24/03 (1)
  • Re: Re: Gear ratio and diff question on 84 GMC fast68chevy 16:42:54 11/22/07 (0)

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