New Guy, lift question
 

Looking at buying a 93 ext cab w350 dually. I would like to run 37'' tires, how much lift will this require and what kit would you recommend? I was thinking 6'' but keep seeing driveline issues and would rather avoid that, will a 4'' do it? I'm thinking 37x13-17 boggers on XD wheels if that matters, can do minor trimming but would rather not if avoidable. Any input is much appreciated

37's will fit better with 6 inches of lift.
I have 6 inches of lift and still had to trim my front fenders to fit 37X13.5R15s on my '85 crew cab.
I have had good luck over the years with Skyjacker suspensions for the money.

I see Skyjacker offers several kits that vary in price, seems the only difference is the shocks. Is it worth the extra money for the fancy shocks? Will it really make a $500 difference in ride quality?

I'm in Monroe,La, just a few miles from Skyjacker. I would rather extend driveshafts for the 6'' than hack up fenders for a 4''

I didn't have to extend the driveshafts, but my front one is stretched out enough that I will make up a custom one when it needs replacing…Which is about now, after 10+ years.

36's rubbed the rear of the front fender when stuffed with a 4 inch kit on my RamCharger. I think 6" is the best kit for 36-37 inch tires.

I would stay away from Skyjacker if you want a lift that doesn't end up with your drivers side sitting lower than the passenger. They know it's an issue and refuse to fix it. Their springs can not hold up the drivers side properly. They blame dodge for putting the battery and fuel tank on the same side as the driver. Kenny says it's not a matter of if it will sag but when will it happen. Their lifetime warranty is written in a way that lets them pick and choose what to warranty. Their suggestion was that I add a block to the drivers side to level it out.

D 350
 

hi Oliver do you or do you know of anyone working on a Dually lift? You have seen mine looking to lift front to run 35's on those 16" rims with the skyjacker 2 1/2 inch work or any suggestions

35's might fit better with a 4 inch lift depending on the rim width and back spacing.
Otherwise with a 2 inch lift you will most likely be looking at trimming the rear of the front fender to get it to turn...Unless you don't need to steer your truck.[laugh]

What's the opinion on jack it lifts

I have a 6 inch Skyjacker lift on my crew with 35's. 37's could easily fit.

Things to keep in mind / things I learned the hard way:

1) You will need longer soft brake lines that go from the frame rail to the axles (Skyjacker makes them). People with 4" lifts I've heard didn't have this problem but guys with 6" did.

2) My drive line angles got super screwy. I have a crew, so I have a 2 piece rear drive shaft. The length was ok but my angles were off bad and caused vibrations that took me some time and a u-joint or two to work out. Ended up lowering my carrier bearing about 1 3/4 inches. The front driveshaft was too short for me and bound on the 1350 front yoke. Had to go with a bigger 1450 and longer shaft. Some I've heard didn't have to lengthen their shaft though ???

3) My steering geometry got all dorked up as well. The Dodge "push/pull" style steering isn't very good stock, throw a lift at it and its basically junk. My steering wheel would be at 9 o'clock to go straight, then sometimes I'd hit a bump and it would be at 12 o'clock, sometimes ...hell it just did whatever it wanted to. I don't know how your funds are but I recommend budgeting in a crossover steering kit from ORD (Off-Road Design). This is quite possibly top 3 mods I've done. Makes the truck drive better than it ever did stock. Throw in a Borgeson shaft while you're at it.

4) DO NOT REUSE YOUR U-BOLTS!! Get new ones. And when you do, get the 5/8" sized ones up front that chevy trucks had with similar axles. Dodge is 1/2" I think. I didn't do that and my front axle was moving around while I was driving (which helped cause my bump steer issue as well). This caused my stud to brake off into the differential housing and caused a huge mess. I was dumb and cheap. Don't be dumb and cheap.

I've had my lift about 3 years still and my truck still sits straight. The only time I noticed the truck was sitting funny was when my cab bushings gave up.

Hope this helps, good luck!