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**MySons68C20** · 09-26-2021, 01:11 PM

I would run it as is....if the speedo is off you can correct it later afaik.
I installed 3.42 in my 68 and wish I had the 3.73 instead.
The 700r4 4th gear is not really usable below 50 mph imho.

09-26-2021, 01:11 PM	#8
MySons68C20 Senior Member Join Date: Sep 2014 Location: Wenatchee, Wa Posts: 902	Re: rear end swap I would run it as is....if the speedo is off you can correct it later afaik. I installed 3.42 in my 68 and wish I had the 3.73 instead. The 700r4 4th gear is not really usable below 50 mph imho.