Leaf springs? recommendation please - Dodge Cummins Diesel Forum
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post #1 of 33 (permalink) Old 09-10-2019, 07:12 PM Thread Starter
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Leaf springs? recommendation please

Hey all my leafsprings are about shot, my truck has 273k miles and think its time to get some new suspension. it has the 4in blocks and id like to keep at the same hieght so ive looked at the 4in rough country lift kit but it says that it is not for the model with the cummins motor.

My question is where should i get some new suspension parts that are reliable and good quality. i do pull a skid steer that weighs 9,000lb and the trailer weighs 4,000. so would prefer some heavy duty springs if possible.
Please someone send me in the right direction on where i can find what i need.
Thank you all!


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post #2 of 33 (permalink) Old 09-10-2019, 08:21 PM
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Skyjacker makes some Cummins-rated springs, that's the direction I'm going...

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post #3 of 33 (permalink) Old 09-10-2019, 08:37 PM Thread Starter
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thank you sdeeter. I will look into them, any particular place you are looking to purchase them?

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post #4 of 33 (permalink) Old 09-10-2019, 08:43 PM
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I'm getting them through Summit...

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post #5 of 33 (permalink) Old 09-10-2019, 09:09 PM Thread Starter
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thanks a lot. any idea what those are rated for towing?

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post #6 of 33 (permalink) Old 09-10-2019, 09:17 PM
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You will have to read up on them, they state they meet oe load specs...but anything lifted (plus big tires) is going to tow different...

I've got a different truck (newer Silverado 2500hd) to do towing, therefore it wasn't as big a concern to me.

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post #7 of 33 (permalink) Old 09-10-2019, 09:23 PM Thread Starter
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understood. im not trying to lift too high just like the look of my truck right now and im pretty sure its a 4in block and would like to keep it at that height.

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post #8 of 33 (permalink) Old 09-10-2019, 09:54 PM
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The block is a factory deal...on the rear axle.

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post #9 of 33 (permalink) Old 09-10-2019, 10:50 PM Thread Starter
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yeah i have read that. i found a company called Alcan and carrier spring service that seem to be built well but also expensive. i just dont want to waste the money and a couple of years from now be sagging again like they are now.

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post #10 of 33 (permalink) Old 09-10-2019, 11:48 PM
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the 4+ rear blocks are stock. Springs are not rated for towing, just for load. Talk to a local 4x4 or spring shop.
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post #11 of 33 (permalink) Old 09-12-2019, 12:37 PM
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Quote:
Originally Posted by chettej View Post
yeah i have read that. i found a company called Alcan and carrier spring service that seem to be built well but also expensive. i just dont want to waste the money and a couple of years from now be sagging again like they are now.
Mine are about 6 years old an no sag yet. Well worth the $ IMO.
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post #12 of 33 (permalink) Old 09-12-2019, 02:33 PM
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Quote:
Originally Posted by chettej View Post
Hey all my leafsprings are about shot, my truck has 273k miles and think its time to get some new suspension. it has the 4in blocks and id like to keep at the same hieght so ive looked at the 4in rough country lift kit but it says that it is not for the model with the cummins motor.
There are no cummins-specific leaf springs for the rear. Heavier trucks have 3/4" eye bolts. Lighter trucks have 5/8". I have cummins trucks with either size eye bolts. I have gas trucks with the 3/4" eye bolts.

Check your spring hangers for being rusted through. If you need to change these, it really adds to the labour. At which point you can consider mounting them lower, or further apart, and even run longer springs (better ride). Jungle over at RCC has a stout shackle-flip setup that can eliminate the block. Chevy leafs (56" or 63") have more arch to them than Dodge. (stock vs stock.)
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93 W250 Club 6BTA |5spd |60/80/3.54/Lockright |4" lift |315/75R16 |HX35 |5x.012s |BD pin & gov spring
90 D250 6BT |5spd |D60/3.54/Lockright
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