royta

I wish my truck were home so I could measure the exact difference, but I'll guess it's somewhere in the area of an inch, or so, lower in the rear. The utility body on my truck probably weighs 1100 lbs., and when it's loaded down with tools, who knows. It has got some real heavy home made bumpers on it too. When I get it back, I'll post some pics in my gallery to show off it's heavy duty status. It's my dad's old truck, and he's a plumbing and firesprinkler contractor, so I'm sure the truck has hauled some weight in the past 14 1/2 years.

My dad said that he's looked at trucks of the same generation that sat level, and he said it appeared like they had a taller block between the axle and spring. Of course, I'm not sure if he was looking at trucks that had the standard bed though. Does anybody have any info on this?

apache

It seems from what I see all the first gens sit higher up front except the duallies. Im not sure what size block is in the rear, but dont go over 4". Its just not safe, plus it will produce more axle wrap on acceleration. With your bed it sounds like a add a leaf or air bags would be the way to go. I have a set in my 93 250 and they kinda work like sway bars as well cause there so firm even uninflated. You could also have a spring shop build you new rears for around $500.

wannadiesel

I'd go with extra leaves, you'll be running at about the same weight all the time. No need for the adjustability of air bags. A spring shop can probably hook you up for under $100 with leaves and U-bolts if you do the work yourself. Blocks are spooky, especially with lots of weight on them.

spunbearing

Roy, My GMC utility used to sit like that and I installed an add a leaf kit. I think it was like $40. When I got the little D-50 and mounted my boxes it almost hit the ground lol. I installed the same add a leaf kit on the dodge. Unfortunately on the little dodge it gave me about 4 inches of unexpected lift on the back.. I was hoping for only 2. So I had to change the rear shocks to the 4x4 shocks with longer travel. I had to get used to the quick steering. Changed the steering geometry more than I would like but it works great . I think that your truck looked 2-2 1/2 inches low on the back . The add a leaf should put you where you want to be. You saw how my GMC sits. Yours would probably be about the same. Rides a little rough empty. It likes to have weight on it. Make sure to get your lift straightened out and get all of your tools aboard before you do your tires and alignment. I always align mine with all of my tools on it because that's the way I drive them 99% of the time. I found that aligning them empty then loading them eats up tires.

Chrisreyn

My 91 W350 single rear wheel sits about an inch lower in teh rear, and at first I thought it was the weight of the flat-bed. i am installing an add-a-leaf next month and will let you know if it corrects that.
It just kinda doesnt look right like this......

Alec

I thought that the '92's & '93's had six inch blocks from the factory, while the earlier trucks had 4 inch blocks . . .

But I haven't found a '93 to measure up yet.

DDD

‘89-’91 W250s and single wheel W350s used a 3” block. ‘92-’93 single wheel trucks used a 4” block. I can’t answer for the duallies.

royta

Good info. Thanks.

Dieseldude4x4

My 89 sat about an inch or more low in the rear from brand new.