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92 D250 Cummins SRW Dana 70

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Old Sep 27, 2025 | 11:11 PM
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Default 92 D250 Cummins SRW Dana 70

Hey guys so I'm having a wonderful time with the rear suspension. At least everything isn't rusty like most things up here in Northeast PA, anyways I haven't done much suspension work I made a rookie mistake and only lifted one corner to remove the passenger side leaf springs. Not sure what I was thinking or if it's anything to worry about? After looking it up you're supposed to support the entire rear end and frame when doing leaf springs. I'm on the driver side now I made sure to lift the entire rear this time, it really sucks that these are like the 2nd gens and you have to remove the fuel tank. I had such a difficult time disconnecting the fuel lines, but luckily haven't broken anything yet. Anyways I wanted to see if you guys have any tips and/or tricks, I made sure to leave everything hand tight on the passenger side with new u-bolts+nuts while I do the driver side and not torque anything down. At least I'll get to clean up the inside of the frame rail a bunch. It seems the fluid film hasn't been getting to it too much with the fuel tank in the way it's the only section of the frame that has a bit of rust buildup. I was thinking about going into the fuel tank through the grommet the filler neck goes into with a borescope and checking things out inside as I do not plan on taking it off the transmission jack because it has over a 1/4 tank of fuel in it. I'm just removing the 2nd leaf spring from the bottom and installing new bushings, there are 8 springs on each side and I don't feel the need for it also it'll level the truck out as the rear was sitting higher. Plus there is also the spacer on the driver side because of the famous dodge lean. Thanks guys.
 
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Old Sep 28, 2025 | 08:14 AM
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After looking it up you're supposed to support the entire rear end and frame when doing leaf springs.
So you just lifted the truck on one side and replaced them? I could see this being more difficult than supporting both rear and truck then dropping the rear. You may want to support the truck(after you are done) with the rear just touching the ground, Then loosen the bolts on the rear to make sure nothing is tweaked and in alignment then retighten.
 
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Old Sep 28, 2025 | 11:03 AM
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Originally Posted by Moparite
So you just lifted the truck on one side and replaced them? I could see this being more difficult than supporting both rear and truck then dropping the rear. You may want to support the truck(after you are done) with the rear just touching the ground, Then loosen the bolts on the rear to make sure nothing is tweaked and in alignment then retighten.
Yea, and alright I pretty much had to lift the rear back up because I couldn't get the front spring eye back in and also couldn't get the u-bolts to line up properly. Like you said it did mess with the alignment a bit because the front spring eye bolt wouldn't line up so I had to put a brick behind the tire and smack it forward.
 
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