Going from BB to new coil spring lift

[Sahara Mike]

Looking for some advice from everyone. Currently I'm running a 2.5" BB on factory springs with OME 2.5" shocks / bump stops. The stock coil springs are starting to sag (2004 Sahara) and I was thinking on buying some 3" lift Nth Degree coils to replace the old ones. Right now I only get very slight vibes around 40-45 mph - not bad enough to drop the TC in my opinion. If the vibes get worse once I make the change, is there a "golden rule" about how much you drop the TC per inch lifted? Or do I add washers until the vibes disappear? I anticipate more vibes once I add the coils. At this point, I can't do a SYE / CV, so a TC drop is likely my only option. Also, will I need to get longer brake lines with a 3" lift? Anything else you can suggest that I might need? Adjustable track bar maybe?

Also, what are your thoughts on the Nth Degree coil springs? Anybody using them?

 

[JP98]

https://wranglertjforum.com/threads/a-beginners-guide-to-lifting-your-jeep-wrangler-tj.733/

Chris did a great write up on lifts. Check it out. It will answer most of your questions.

 

[JP98]

I would suggest the break lines, adjustable track bar and work toward the SYE/CV as soon as the old wallet allows.

 

[Chris]

is there a "golden rule" about how much you drop the TC per inch lifted? Or do I add washers until the vibes disappear??

There isn't a golden rule. It really varies from vehicle to vehicle. You'll just have to mess around with it (and use the washers) to see what amount of TC drop it will take to eliminate the vibrations. A MML would also help as well.

Also, will I need to get longer brake lines with a 3" lift?

You shouldn't need them, but if you want to do them (which won't hurt) this is a great (and cheap) method to do it using YJ brake lines: How to extend your brake lines on your Jeep Wrangler TJ

Anything else you can suggest that I might need? Adjustable track bar maybe?

Yes, I would suggest adjustable track bars at 3". If you give me your budget, I can give you a few good recommendations.

Also, what are your thoughts on the Nth Degree coil springs? Anybody using them?

They make good stuff. While I haven't used their stuff personally, I want to say that @Stinger has an Nth degree lift... I could be wrong, but I thought he said something about it. Either way, last I heard, they make good quality parts.

 

[Stinger]

There isn't a golden rule. It really varies from vehicle to vehicle. You'll just have to mess around with it (and use the washers) to see what amount of TC drop it will take to eliminate the vibrations. A MML would also help as well.




You shouldn't need them, but if you want to do them (which won't hurt) this is a great (and cheap) method to do it using YJ brake lines: How to extend your brake lines on your Jeep Wrangler TJ




Yes, I would suggest adjustable track bars at 3". If you give me your budget, I can give you a few good recommendations.



They make good stuff. While I haven't used their stuff personally, I want to say that @Stinger has an Nth degree lift... I could be wrong, but I thought he said something about it. Either way, last I heard, they make good quality parts.

My Nth is great!

 

[bobthetj03]

Each jeep is different. When I installed my OME 2.5 lift, I instantly had driveline vibes, and had to lower the TC 3/4". My Jeep was very sensitive to change. Others are not. Put the coils in, test drive, and lower the skid to eliminate vibes. Yes, get an adjustable TB.

 

[Sahara Mike]

Thanks for the replies. Overall, my budget is around $1K, but keep in mind this is needed to cover the coil springs (roughly $360), adjustable track bar (roughly $250), new discos (roughly $250 - currently running on the street disconnected - not as bad as you think), installation/labor, etc. Add in to the mix the YJ extender brake lines, etc. It looks as though I may have to wait a little longer to accumulate more money.

On a tangent, I plan on updating my profile with a picture today at some point.

 

[dan lee]

I ended up with a TC drop, hated it, decided to do the motor mount lift instead. Worked great, watched a couple video's on how to do it

 

[Chris]

I ended up with a TC drop, hated it, decided to do the motor mount lift instead. Worked great, watched a couple video's on how to do it

The MML is definitely a better solution than the TC drop IMHO!