info on control arms

I have a 98 intrigue that need control arm bushings replaced. Do these have to be pressed into place?

Vertical Bushing = Yes
Horizontal bushing is part of control arm = No

J 21474-01 Control Arm Bushing Service Set
J 34126 Driven Sprocket Support Bearing Installer
J 35379 Front Knuckle Support
J 21474-27 Puller Bolt
J 21474 Bushing Installer
J 21474-02 Bushing Installer
J 21474-4 Nut
J 41014-1 Bushing Remover

Make your own with a large hardened bolt, nut and some washers and cups.

Vertical Bushing = Yes
Horizontal bushing is part of control arm = No

J 21474-01 Control Arm Bushing Service Set
J 34126 Driven Sprocket Support Bearing Installer
J 35379 Front Knuckle Support
J 21474-27 Puller Bolt
J 21474 Bushing Installer
J 21474-02 Bushing Installer
J 21474-4 Nut
J 41014-1 Bushing Remover

Make your own with a large hardened bolt, nut and some washers and cups.

what are these numbers for? are they for these parts ? how do I get more info? Be pacific.

Control Arm Bushing
Front Suspension
Bushings
GM part #10407903
$9.39 (dealer) about 1/2 off at GMpartsdirect

http://i41.photobucket.com/albums/e277/liquid100percent/83428553.gif

those numbers are all GM part numbers. You can make your own bushing puller will some hardened metal, and cut pieces of pipe. Harbor Freight has the cups and cheap ball joint and puller sets. The hardened bolt goes thru the bushing (in this case) and pulls the bushing into the cup part. Need a good quality socket wrench and maybe a breaker bar also (a piece of pipe over your wrench handle).

Control Arm Bushing
Front Suspension
Bushings
GM part #10407903
$9.39 (dealer) about 1/2 off at GMpartsdirect

http://i41.photobucket.com/albums/e277/liquid100percent/83428553.gif

those numbers are all GM part numbers. You can make your own bushing puller will some hardened metal, and cut pieces of pipe. Harbor Freight has the cups and cheap ball joint and puller sets. The hardened bolt goes thru the bushing (in this case) and pulls the bushing into the cup part. Need a good quality socket wrench and maybe a breaker bar also (a piece of pipe over your wrench handle).

Thanks I got a good idea what's going on now. A mechanic told me that it's best just to replace the whole control arm assembly, He said that if you just replace the bushings you'll be changing them again in another six months. I hope he's wrong. Thanks again.