Design of LA crossmember

C

CW

NAXJA Forum User

Location

Coeur d'Alene, Idaho

• Aug 7, 2003

• #1

Hey, I am going to build my long arm setup this weekend and hopefully be able to get the jeep off the jackstands. I am using RE superflex joints at the frame mounts and rubber bushings every where else. I want to build a crossmember to keep the LCAs mounted inside the frame rail. What are you guys using? Any tips on materials or construction, and pics would be appreciated.

 

R

RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Aug 8, 2003

• #2

Heres mine!!

It has all the dimensions of a stocker but with a little drop built in.The brackets are flush with the bottom.

 

B

Bender

NAXJA Forum User

Location

Cambridge, Ontario

• Aug 8, 2003

• #3

RCP Phx,

Are you just going on the assumption that you will rarely have to drop the tranny?

 

C

CW

NAXJA Forum User

Location

Coeur d'Alene, Idaho

• Aug 8, 2003

• #4

The control arms are only two bolts that are fairly easy to remove. I would rather have a slighty harder time dropping the tranny than have rocks or stumps rip off my LCA mounts, if they were under the frame rails.

 

COXJ

NAXJA Member #989

Location

Golden/ Arvada, CO

• Aug 8, 2003

• #5

what materials did you use for it?

and how often do you actualley drop your tranney for it to be any kind of problum?

will

 

R

RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Aug 8, 2003

• #6

I spent alot of time thinking about all this.My concerns were based on the needed strength for the inboard mounting and the need to try and stiffen the Uni-body whenever possible.These pics are early on,but I have more to do when it cools down(Oct)!As far as materials I started with 2x4 tube and 2x2 angle!

 

COXJ

NAXJA Member #989

Location

Golden/ Arvada, CO

• Aug 8, 2003

• #7

what kinda thickness are we looking at?

 

C

CW

NAXJA Forum User

Location

Coeur d'Alene, Idaho

• Aug 8, 2003

• #8

RCP Phx, did you start out with a stock cross member? If so, what do you have to do to build in the drop? Do you just lower the middle dip that the t-case is sitting on?

 

R

RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Aug 8, 2003

• #9

Im using mostly .120" and .188" depends on the part.As I said Im not done,its extends fore/aft for additional strength and protection.I also added additional ribbing where I cut it open,its also sleeved for the xf case bolts so the are no holes anywhere!

 

Last edited: Aug 8, 2003