hey guys I just bought a 93 w250 5 speed. what axels does it have stock?? and is there upgrade axels to allow faster speed??

 

IIRC on the W250 they have Dana 60 front and rear. You can swap gears in your axles for a taller gear set to allow faster speeds until you rev out your engine. If your governor spring in your injection pump is stock I'd mess with that before the axles, its a heck of a lot cheaper, faster, and easier.

 

Dana 70 rear. If you get a Dana 61 and 71 you can have 3.07's.

 

You are right, it is a Dana 70, I thought I heard somewhere the W250 had a 60 and the W350 had a 70 but the must not have known what they were talking about.

 

D60 front, D70 rear. It could be 3.54 or 4.10.

You have a number of choices for more top speed. Change axle ratio, taller tires, or a governor spring for your injection pump. (gov spring by far the cheapest)

3.07 axles came in the 89-91 automatic cummins trucks with the 727 (non-OD) transmission. The entire axles need to be swapped because the housings are cast differently for those gears.

3.33/3.31 can theoretically be done too... its a std ratio for D60, and it involves using Dana 80 gears in the D70, or a D80 axle swap.

 

You could get 3.07's all the way through '93.

 

What is the gov spring stock?? And what do you recommend???

 

Your CPL tag will say the governed rpm. My '93 says 2500.

I've heard of 3200, 3600, and 4000rpm gov spring. I believe the '366' spring is supposed to be 3200rpm.

I saw this in the Dana catalogs also! Although I've never seen the ratio paired with anything but the TF727.

 

With my dually and whatever gears it has will do over 100mph when I had a 3200gov spring and no high idle screw. Now I got a stock pump again and 80 seems like I'm pushing it.