skrewy

i have a question about some new leaf springs i bought. they are 3.5" pro comp springs they come with a 4 ° shim already installed on them. so my question is the shim good bad im hoping they settle to about 3" or i will keep wieght in the back its winter anyway.there on my 2001 with 3 inch springs in the front

JerrytheJeep

I've had em on one of my jeeps for a year or two now. They haven't settled much, I haven't wheeled em a ton or carried more than 200 lbs of gear at one point. Ill see if I can take a measurement later tomorrow. The shims help alleviate driveline vibrations. If you have an sye they're definitely reccommended.

skrewy

Thanks I guess I will just have to put em on and see

JerrytheJeep

Do yourself a favor and get some leaf spring clamps to keep the overload leaf from wandering into your tires. Also use quality u-bolts, not autozone ones.

skrewy

I've heard about that and I see what you mean I'm more worried about my driveshaft and the angle also heard I could get up to 4" or more with them

skrewy

What sisze u bolts do I need are they 3" and with the thicker springs will they need to be longer 8.25 rear btw

perpetual

I just installed some Pro Comp 3" springs with the built-in shims and I'm getting really bad vibrations around 25mph. I haven't done much with it since I installed them since I'm waiting for my new tires to come in. I was toying with the idea of trying to get the shims off of them to see if that helps with my vibration since I don't have an SYE and would like to avoid putting one on right now as cash is a little tight with the holidays and all.

NFJ79

Look into doing a 1inch TC drop for a cheap fix.

JerrytheJeep

This, you may just need new u-joints. Often times the ujoints get used to running at low angles that change when you lift it, which ruins the u-joints. Id check those first.

perpetual

Honestly I've only got maybe 5 miles on the Jeep since I did the lift and I checked the u-joints on the rear shaft and they seem rock solid.

skrewy

How would you remove the angle peice on the spring pack wouldn't the pin be to long pin bolt be too long after that

perpetual

Possibly, I'd have to take a look and see what I was dealing with. I'd rather not go through the hassle, but it would probably be cheaper than the SYE/DS combo but if that's what I have to do, I will start saving my pennies.

skrewy

Well I havnt put mine on yet I was going to do it Monday now I'm having second thoughts hate it when I do that

perpetual

So thinking about it last night I'm not sure a TC drop will help because it would actually make my rear angle worse because of the shims. I really need to get out and take some pictures, but from memory, my rear angle is closer to 0 because of the shims and if I lowered the TC I'd actually have more of a negative angle than I had prior. Kinda sucks that it's already dark out when I get home from work and it's been raining the last 2 days so I haven't done any work on the Jeep. Maybe this weekend I can get out there during the day, but it's supposed to be bitter cold. *sigh*

skrewy

So a guy should just lose the shims and the 1/2 " they give and go with straight packs at about 3" word