ALCAN Leaf Springs 2020

monoman · Oct 7, 2021

I was very pleased with my Alcan leaf pack on my ‘03 Dbl Cab. Had them for years. No issues ever & handled very nicely on & off road. I’m considering getting another set for my 2018 when I do a lift on it.

tacocart762 · Oct 8, 2021

monoman said: ↑

I was very pleased with my Alcan leaf pack on my ‘03 Dbl Cab. Had them for years. No issues ever & handled very nicely on & off road. I’m considering getting another set for my 2018 when I do a lift on it.
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agreed

Acesolo1! · Oct 8, 2021

tacocart762[OP] said: ↑

In answer to your first question they forgot to send the spacers. I messaged them through an Insta reply so I am not really holding it against them. I could call them I guess if I really wanted.

The 6112's were soft in my mind with the original springs. 600lb. Not so soft that the nose would dive when braking but kinda squishy I guess and that is off road with the tires aired down. On the road handling is solid and the ride is much better then factory. Since I have full steel skids, steel bumper, and sliders I knew I needed the 650lb springs. So I ordered those and swapped em out. Now with all that weight and the new springs the truck feels solid again but before the spring replacement my nose would dive when braking.
The biggest difference in my mind that I can feel is the truck swaying because of the sway bar delete. Doing this has improved the trucks ability to keep the tires on the ground offroad but onroad it feels like a boat. That being said I have taken the truck up to 90 MPH with no sway bar on a straight shot and it feels comfortable to me.
I have only had factory and 6112's up front. The rear I did have the 5100's at first them swapped em for the 5160's. I do not notice a difference with that except for the heat. With the 5160's I noticed it took longer for the shock and reservoir to heat up. Sometimes they do not even get hot but I usually do longer trips so they eventually get hot/warm to the touch.
I would go for it if I were you and if you can find them. The Bilstein 6112 front and 5160 rear combo is a winner! They have lasted a year of weekend offroading, DD, and overland adventures without spending $1000's which I do not have. I feel like this is the best deal you are gonna get in that price range. Plus you can change the height, change the spring weight, and they are 60mm(2.65'') and they look badass with the front bumper cut away. Of course you can do all those things with the 5100 but the 6112 are designed for rougher terrain. I hope this helps you!!

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Right on. Right now my 4600s are with the stock coils and I cant get a straight answer to what the spring rate is on stock coils so I dunno what speing rate to go for when getting new coils or getting diff shocks...i could do a softer speing if I had a firmer shock to kind of even it out but im afraid of getting the wrong combo and being too stiff or not sriff enough ...i have sliders and plan to get steel skid plates for the front,transmission and transfercase so id atleast want a 650 but ive often heard the stock coils are 700 and if thats the case id def want a 700 lb spring....

tacocart762 · Oct 19, 2021

Acesolo1! said: ↑

Right on. Right now my 4600s are with the stock coils and I cant get a straight answer to what the spring rate is on stock coils so I dunno what speing rate to go for when getting new coils or getting diff shocks...i could do a softer speing if I had a firmer shock to kind of even it out but im afraid of getting the wrong combo and being too stiff or not sriff enough ...i have sliders and plan to get steel skid plates for the front,transmission and transfercase so id atleast want a 650 but ive often heard the stock coils are 700 and if thats the case id def want a 700 lb spring....
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I have heard that the stock coils are at 700lbs too. But remember the 6112 coils and strut are longer than the stock ones. With an aftermarket UCA and the longer front components you get more flex out of the front end.
Bil5100 22.17in extended Bil6112 22.56in extended. I hit some rough trails off the back side of Big Bear this last weekend and the 6112's and 5160's with no sway bar performed amazingly! That is with steel skids all 3 of them, steel bumper, and heavy sliders, plus the truck was packed for the trip and two people.

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ALCAN Leaf Springs 2020

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monoman Time to get dirty!

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ALCAN Leaf Springs 2020

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monoman Time to get dirty!

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