hey so i swapped my rearend from a 2.73 to a 3.42, i know i need the yellow 41 tooth driven gear and the 15 tooth drive gear, my tires are 245/50/16

so now the problem is http://www.transmissioncenter.net/sp...n_______va.htm is out of stock on the yellow 41 tooth drive gear, they do however have the 42 tooth drive gear in stock

how off will my speedometer be if i get the 42 tooth gear? like 2 mph or will it be worse?

and also my speedo is electric but it will use the same gears as the cable driven ones right? thanks

 

1%
No.

 

whats different between the gears for the mechanical and electric 700R4? i did some searching and someone says you need a metal drive gear? and other people are saying no its all plastic...which one is right?

 

http://www.transmissioncenter.net/sp...__va.htm#700r4 has pictures of the gears for cable driven

http://www.transmissioncenter.net/sp...0gear%20driven has pictures of the gears for VSS

 

thanks for the help man

 

BTW, a lot of gear selections on websites and speedo calculators are different than what GM used. I've always had dead-on results w/ the GM gear selections. I'd err to the 42 myself.

 

ok im ordering it today, going with the 42,15 setup