hey all,
I got a 1963 GMC 4x4 1/2 ton with a 327 engine, edlebrok 600 cfm (poly prine riser), 31x10.50R15 tires, 3.54 differential and I just installed a 300 lb WC T5 5 speed trans.
My RPM in fifth gear is a bit doggier then I'd like at about 1700-1800 RPM's at 65-70 MPH. I got an extra rear end and front end with 4.11 differential in my shed that came in cahoots with the truck when I bought it.
I was thinking that 4.11 differential would put this whole set up at maximum performance rather than the 3.54 that I am running now.
Question:
1. What do you all think of that?
2. Is there much involved with goign from a 3.54 to a 4.11? ie: are some of what I have interchangeable?
3. Expensive?
4. Should I just leave it all as is?
Thanks for any response.
Shane Hamilton
Warrensburg, MO (1 hour from KC)
p.s.If you live anywhere near me and you would like to help me do this I have lots of extra to trade and maybe some $$ to boot.
