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Wanting to run a BDS 4" lift with 35"s on 22"s

'00SonomaZQ8

By '00SonomaZQ8
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'00SonomaZQ8 Enthusiast

'00SonomaZQ8

Posted
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I'm looking into the BDS 4" lift kit and it says 35x12.50s are doable with a 5.75" backspace on a 20"x9" wheel. If I run the 22"x9" CK158 with a 5mm spacer that brings the backspace to 5.75" so the 35x12.50R22s should fit just right, correct?

 

Any suggestions for this setup? Should I consider a gear swap from 3.42 to 4.10 for better performance and economy with 35"s?

 

I'm going back and forth between this and the RC 2.5" level kit with 33"s. I know the cost difference is huge and I'll have to watch where I park, including my own garage, so I'm weighing that with the looks of the lift.

Mike1220 Senior Enthusiast

Mike1220

Posted
Posted

Yes to the gear swap, I plan to do so this summer after I get my 4" Zone w/ 35s on stock 20x9s.

 

As for the spacer, I can't imagine that 5mm will make that big of a difference. In this case, the 5mm is negligible.

'00SonomaZQ8 Enthusiast

'00SonomaZQ8

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You think I could possibly run a 25mm/1.75" spacer with 35"s to give it a little better stance? I just don't want it to rub.

 

Here's a truck very close to what I want, 3.5" lift on 33"s. He's running 2" spacers though.

 

ScreenShot2014-11-24at70813PM_zpsd3c861c

'00SonomaZQ8 Enthusiast

'00SonomaZQ8

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I really don't want to go that high. I looked at a truck with a 6" and I just thought it was a little too much. Maybe I could just stick with 33"s, but man, I bet 35"s would look tits.

Mike1220 Senior Enthusiast

Mike1220

Posted
Posted

I really don't want to go that high. I looked at a truck with a 6" and I just thought it was a little too much. Maybe I could just stick with 33"s, but man, I bet 35"s would look tits.

35s Would look great! I'm planning to get some this Christmas so I can post a pic to show a 4" with 35s. I know there's a few members here in the suspension thread that have 4" with 33s and a very few have 35s on a 4".

 

I must agree with you on the 6". It's just a bit high to me as well. At 5'6", I don't want to climb up that high every time I want to get in and out of my truck. Take a leap of faith when you get out too haha.

 

You think I could possibly run a 25mm/1.75" spacer with 35"s to give it a little better stance? I just don't want it to rub.

 

Here's a truck very close to what I want, 3.5" lift on 33"s. He's running 2" spacers though.

 

ScreenShot2014-11-24at70813PM_zpsd3c861c

Here's the problem with doing a 4" BDS and 1.75" spacers upfront. There will be no way to bring the rears out far enough to be able to match the front track width anymore, unless you want to double up on spacers but I can't imagine that would be a good idea at all. The kit will bring the track width out 1-5/8" I believe. So you will already need a 1.5" spacer to bring the rears to match the front. I plan to possibly run a 1/4" or maybe a 1/2" (if it leave enough threads) to bring the front out a full 2" from stock. And then run a 2" spacer in the back. But that's after I see how much they stick out with the 1-5/8" widened track width.

 

If you do a RCX kit of any height then your track wish won't widen at all so you can run 2" spacers front and rear and still be even all around.

blackout07 Senior Enthusiast

blackout07

Posted
Posted

I wouldn't bet on 35s fitting cleanly with that kit. That pic of the 3.5" with 33s looks stuffed. As far as the offset on the factory 22s. You may get away with it without spacers. You'll note that the bs allowance is greater with increased wheel diameter just due to spindle clearance. If not just roll with half inch spacers up front and 2" out back

'00SonomaZQ8 Enthusiast

'00SonomaZQ8

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I didn't think about the track width increasing. I guess if I do it I'll just have to see how it all fits before adding spacers to the mix.

 

The more I look at it I think it would be better to just run 33"s with the 4" lift. If I ever need to flex I think the 35"s would make contact. It would look bad ass on the street but suck when it came time to actually use the suspension.

 

RCX is the lift that the dealer is installing but they list it as a 6" lift whereas RC lists their lifts at 5" and 7", so I need to go by the dealer and ask which lift is on the trucks they have in stock. I could go that route since that is what they use and the price is nice.

 

I appreciate the help guys!

'00SonomaZQ8 Enthusiast

'00SonomaZQ8

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Here's a truck with the 7 inch RCX on 20"s and 35"s. I'm really liking the look and I'm kinda torn on the 5 inch and 33"s or 7 inch and 35"s.

 

IMG_1962_zps56d68457.jpg

 

IMG_1963_zps5343ce0e.jpg

 

IMG_1964_zps27127b88.jpg

baggedlvintegra Enthusiast

baggedlvintegra

Posted
Posted

So in my opinion you need to start with selecting what tire size you're willing to go with and then start thinking height. See me I won't go to 35s due to mpg and weight/wear, specially with these $hitty gears GM puts in these trucks

blackout07 Senior Enthusiast

blackout07

Posted
Posted

If you are already considering going higher then that's the route you should go, because if you don't, every time you pull up next to a bigger truck at a stop light, etc. you'll sigh....lol. Then you'll spend more money to go higher. So just do it now and avoid the pitfalls that I, and so many others, have fallen into.

'00SonomaZQ8 Enthusiast

'00SonomaZQ8

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I guess I need to drive one of the trucks on 35"s to compare it to a stock truck. They are all 5.3s and I'm guessing they've got 3.42 gears in them. I'd be looking at a 6.2/8-speed with 3.23 gears for myself.

 

At 10MPH in 1st gear a stock truck will pull ~1572RPM and the same truck on 35"s will pull ~1415RPM. With 35"s and 3.42 gears, ~1498RPM. 3.73, ~1633RPM.

 

At 40MPH in 6th gear a stock truck will pull ~1379RPM and the same truck on 35"s will pull ~1241RPM. With 35"s and 3.42 gears, ~1314RPM. 3.73, ~1433RPM.

 

At 70MPH in 8th gear a stock truck will pull ~1617RPM and the same truck on 35"s will pull ~1411RPM. With 35"s and 3.42 gears, ~1494RPM. 3.73, ~1630RPM.

 

I'd probably do a 3.73 swap at some point.

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