1990 D250 to W250
For the NV4500:
4LO 1.96, 3HI 1.67, 5LO 1.45, 4HI 1, 5HI.74
That is how you shift if you want to use the t-case to split.
It is not very progressive -- that is, the "gaps" between the gears are not all the same, and the shift from 5lo to 4hi is still pretty big. Worse yet, the 3hi to 5lo shift requires you to shift the transmission from 3-5 before you can double the input speed on the t-case to make the downshift from hi to lo.
I can't make these shifts in any way fast enough for it to be worth doing with a load.
4LO 1.96, 3HI 1.67, 5LO 1.45, 4HI 1, 5HI.74
That is how you shift if you want to use the t-case to split.
It is not very progressive -- that is, the "gaps" between the gears are not all the same, and the shift from 5lo to 4hi is still pretty big. Worse yet, the 3hi to 5lo shift requires you to shift the transmission from 3-5 before you can double the input speed on the t-case to make the downshift from hi to lo.
I can't make these shifts in any way fast enough for it to be worth doing with a load.
Thank you to all who posted up comments and info.
Hmmmmm.... It will take me a minute...
The last couple days I just did a couple little things.
First I mounted the transmission crossmember braces and adjusted a little more on the transfercase shifters. I also got the steering box bracket about half cleaned up and derusted.
First I mounted the transmission crossmember braces and adjusted a little more on the transfercase shifters. I also got the steering box bracket about half cleaned up and derusted.
I have a friend down in Portland OR who has gathered all the parts I need to do the RR steeing box conversion....just need to find the time to drive down and get the stuff.
I'll be watching with a bit of jealousy....
I'll be watching with a bit of jealousy....

Very happy with my RR steering setup. Never looked back.

You will probably have to drill out the holes in the bracket though.And if you swap the valve in the pump the stock 1970s hoses should fit without modification.

If you went 4" you might have to experiment with a steering knuckle block ala
Skyjacker Suspensions SB60 Steering Block Steel Open Knuckle Dana 60 Each | eBay
Skyjacker Suspensions SB60 Steering Block Steel Open Knuckle Dana 60 Each | eBay
Just ream the 3 holes on the bracket and the 2 on the chevy shaft.
The SAE hoses come strait off the NAPA shelf. NO BENDING
I have no idea why NJT went with metric box, pump, lines








