O.K. I just wanted to get some opinions here. I have a 1979 fj40 ( totally stock). I plan on eventually getting a reduction box probably a klune but not sure yet. I will be running 36" or 37" tires. What would be my best bet to get back to a good gearing for everyday driving? I was thinking switching out the stock transfer case for an np205. Would this alone do the trick or will I have to go the r & p route ? Thanks.

switching t-cases wont do jack for daily driving. its still gonna be a 1:1 ratio correct? unless the 205 is some crazy redusction i dont know about (wich is very possible)! the only way to fix daily driving ratio, is r&p unless you swap to a tranny with all around closer or lower gearg. but thats a bitch! hehe:rasta:

go for some 4:88 gears and if they have them u could even go for some 5:29's and if u do gears its a really good time for those arb's u wanted :D

You could allways do what I did, slip in a Ranger torque splitter.
With a SM420 (7:05.1 first gear) 4:11's in the diffs I have 67:1 in low and with the Splitter in high I run 2400 rpm's at 65 mph on the freeway.

Every tranny/transfer/doubler swap out there (sans NV4500, 700R4 or other overdrive trannies) still leaves you with a 1:1 driveshaft output ratio. Your current stock rear end gearing is 3.73:1. Swapping in a set of stock 78-older ring-pinion gears will net you 4.10:1, which helps a little...but not a lot.

4:56 and 4.88 are available as well, and require little mods to install....4.88 requires a bit of grinding off a ring gear tooth to get the crosspin in for the c-clip rear axle. 5.29 gears are available, but to get the crosspin in you need to grind the piss out of the ring gear...search on here since IIRC gunracer did 5.29's on his 60-series and has no problems....I personally would not tho.

There is a calculator linked on my site (last bit of the tech page) that will help you determine engine speed, gear ratios, tire sizes, etc and what changes effect what. Good place to do some calculations and figger out what you want for a final engine speed relative to your tire size and gearing choices.

I run stock 4.10 gears in my cruiser with 38.5 tires, but have a 350 to push things around with. Works nicely for me on the road, and with my granny gear it kicks butt offroad. (doubler on the dream list right now....)

woody

just saying thanks.