just want some experiences of people who installed tubular k members and which brand, i dont know which one i want either umi or spohn. i want to order it next week, let me know the advantages and disadvantages of either one

frank

 

I have the spohn, very high quality
You may want to call first...took me a very long time to get mine, I have heard the UMI is very nice also..never seen one first hand.

Other than those 2 brands I would not go with anything else

 

BMR front K-member with LS1 mounts and factory rack and pinion KM003
BMR front upper control arms AA001
BMR front lower control arms AA002
in their new Black Hammertone

 

bmr is nice, but i just dont have the $ now to do the upper and lowers, i believe that you need to use bmr's lower a arms as the stock ones wont work
is this true?

 

On a street car, I've seen both the Spohn and BMR crack at the weld of the leading tube for the upper mounts. The daily abuse of pot holes, speed bumps and city ******* seem to take their toll.

UMI asked for feedback on this issue and added some reinforcement.

Here is some interesting reading about aftermarket K-Members ...

http://www.frrax.com/rrforum/index.php?showtopic=7319

http://www.frrax.com/rrforum/index.php?showtopic=8071

UMI is the only K-Member I would even consider.

 

you can use stock arms.

 

WORD!

 

i used umi kmember with bmr aarms and they dont mix!!! the front mount on the bmr a-arms slides around, untill the point where i tighten it so much that the suspension doesnt even travel anymore. You can say i am making it up, but im not. I have a set of UMI adjustable a-arms on the way so i can use the rod ends on both the front and the back. i have been working on this front suspension for forever and am now over 2 grand into it with different parts and such... i am not having fun

 

I went with an AJE k-member. I like the design because it moves the crossmember forward. This makes it possible to get the oil pan off the engine, if the need ever arises. The welds are great, and the fit is good. I had a few questions about the k-member and their manual rack when I installed it, and they were very helpful in both e-mail responses and on the phone.
The balance of my suspension is Spohn. Spohn is also now making k-members for 4th gens. Their quality is also top notch.




Frank
CPT

 

does aje make a k member for lt mounts mild steel and for a stock rack and pinion?, did not notice it on there website

 

I typically jack the front of my car up from the middle of stock K-member, can you do that on these aftermarket ones....I believe UMI is the only one with the second tube running across.

 

i dont care about jacking up on the k member i use ramps or jack on each side

 

I would recommend the UMI K-Member. It probably fits the best out of all the ones we have used. It also has the seconday tubing that makes it a very strong piece;even for street applications.