Topic: 4:70's on the way

[tbam]

My 4:70's are in transit. I have an 85 with an auto, but I have an 87 tcase and W56 to swap in. Can't wait to get it in.  Anybody know how much slower it will be with the 4:70s instead of the auto low range?  Big difference or barely noticeable?

[derek]

you will be able to walk faster than it will move.
if you got really bored you could walk circles around it.

derek

[BigMike]

Hey tbam,

With the 4.70:1 gears, you should be around 90:1 in low range. I've never seen an auto in low range, but I would put money on the 4.7's to be slower on flat ground. Now going down hill, I 100% guarantee the 4.7's to be much much much slower and you do not need to ride your brakes ever where you go!

BigMike

[84runner]

THis will tell you right here if you got all the info http://www.marlincrawler.com/calc.html

[tbam [OP]]

thanks muchly

[donkeykong]

Big diffrence, huge difference.  You will wonder how you got along with out them