I have swapped a 4.3L and its 5sp transmission out of a 91 2wd s10 into my 71 datsun. I found out that the stock rearend in my datsun has 4.375 gears. Im wondering if that would be ok with the s10 transmission? I dont know much about gear ratios and whats acceptable. Will i be high in the RPMs? Help educate me!