What else will I need for a lift to fit 35s?

NDSpeed

NDSpeed

Resident Penguin Eradicator
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East of beauty, West of plains
my list of mods is fairly complete in the bio

Looking at stepping up to 35”

I know I’ll need new springs and shocks and front brake lines. (Rears already done)

Needed: upgraded brakes.
Correctlync
Rear sway bar

Already installed
SYE,
4:10 gearing calculator says I’ll be at 2000 rpm on 35” at 65mph
And I’ll need new bump stops,

Am I missing anything else minor/major?
 
Yup, read that in full detail plenty of times.

Just trying to start sourcing the parts. Going through my mental checklist of what all I have left to get.

Front axle and lockers are what I forgot.
 
What year is your Jeep… I.E. which transmission do you have in there? The TJ has a variety of transmission that will drastically alter which gear ratio would work best. I’m going to lean towards 4.10 won’t be a tall enough gear, but can’t confirm without knowing what transmission.
 
NDSpeed said:
my list of mods is fairly complete in the bio

Looking at stepping up to 35”

I know I’ll need new springs and shocks and front brake lines. (Rears already done)

Needed: upgraded brakes.
Correctlync
Rear sway bar

Already installed
SYE,
4:10 gearing calculator says I’ll be at 2000 rpm on 35” at 65mph
And I’ll need new bump stops,

Am I missing anything else minor/major?
Click to expand...
Why do you need a new rear sway bar? Are you thinking just the links due to the added lift height?
 
TRE3TOP said:
What year is your Jeep… I.E. which transmission do you have in there? The TJ has a variety of transmission that will drastically alter which gear ratio would work best. I’m going to lean towards 4.10 won’t be a tall enough gear, but can’t confirm without knowing what transmission.
Click to expand...
He mentioned his profile. It's all in there.
 
TRE3TOP said:
What year is your Jeep… I.E. which transmission do you have in there? The TJ has a variety of transmission that will drastically alter which gear ratio would work best. I’m going to lean towards 4.10 won’t be a tall enough gear, but can’t confirm without knowing what transmission.
Click to expand...
I was gunna comment too and then remembered that he has a Cummins 2.8 swap.
 
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TRE3TOP said:
I always forget to look there.

Yeah I’d go deeper with the 6 speed. 4.56 at least, possibly 4.88
Click to expand...
That was my first thought also. I guess it just depends where the Cummins 2.8 makes power.
 
Right now it’s a blast to drive low end. Lots of power.

Kinda sketchy though. Always pulling the front left off the ground. That’s why I was thinking of getting the matching rear sway bar.
 
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TRE3TOP said:
I always forget to look there.

Yeah I’d go deeper with the 6 speed. 4.56 at least, possibly 4.88
Click to expand...
Definitely at least 4.88 with the 6 speed, but that's with a 4.0. Not sure the effect with a Cummins 2.8, but I usually don't pay attention to engine anyway when it comes to gearing.
 
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NDSpeed said:
my list of mods is fairly complete in the bio

Looking at stepping up to 35”

I know I’ll need new springs and shocks and front brake lines. (Rears already done)

Needed: upgraded brakes.
Correctlync
Rear sway bar

Already installed
SYE,
4:10 gearing calculator says I’ll be at 2000 rpm on 35” at 65mph
And I’ll need new bump stops,

Am I missing anything else minor/major?
Click to expand...
It's kind of cumbersome going back and forth to your profile and first post. Here's what I think you need if I can remember those two sources correctly (some of these things I think you mentioned needing):

4" springs
Shocks
Adjustable front TB
Adjustable rear TB
Extended rear sway bar links
Transfer Case shifter cable
BMB Brake Pads
Dana 30 4340 shafts (since you plan a locker)
1" MML?
 
JMT said:
It's kind of cumbersome going back and forth to your profile and first post. Here's what I think you need if I can remember those two sources correctly (some of these things I think you mentioned needing):

4" springs
Shocks
Adjustable front TB
Adjustable rear TB
Extended rear sway bar links
Transfer Case shifter cable
BMB Brake Pads
Dana 30 4340 shafts (since you plan a locker)
1" MML?
Click to expand...
Thank you very helpful. Forgot about the rear adjustable track bar.
 
JMT said:
Definitely at least 4.88 with the 6 speed, but that's with a 4.0. Not sure the effect with a Cummins 2.8, but I usually don't pay attention to engine anyway when it comes to gearing.
Click to expand...

The Cummins makes power different than the 4.0 so without really looking at a gear calc chart I'd hold off on recommending gearing.

TRE3TOP said:
That seems a little on the low side
Click to expand...

I haven't looked at a chart nor do I know the RPM range for the 2.8 so what works for the 4.0 isn't going to be the same.
 
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Using the calculator. The 4.88 would put me at 2500 rpm at 65mph

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