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Member
- Joined
- Sep 18, 2008
- Messages
- 16
- Vehicle Year
- 2000
- Transmission
- Automatic
First input then question:
(First Note) The upper DJM control arm has one metal tube that fits inside the poly bushings and one side of the bushing set has grooves cut in it so grease can lube the the metal tube and the other poly bushing has no grooves.
The lower control arm has two metal tubes; one tube fits inside the poly bushings and these poly bushings do not have grooves cut in them. A smaller tube fits inside the larger and the smaller tube is longer than the larger. (approx measurement small inner tube 3.2" and the larger that fits snung inside the poly bushings is 3.105"). The DJM instructions say drill a hole in the larger tube so when pumping in grease the grease can get to the smaller tube.
Question:
- With that said, why is the lower control arm allowing metal to metal pivoting (some grease there) and the upper control arm is not?
- I have not pulled my truck apart so maybe someone can let me know if the stock lower control arms designed the same as the DJM or are the stock arms like the upper DJM control arms (metal to bushing).
Why you ask? Well I would rather buy a .880" OD metal tube and drill a .645" hole in it so the lower arm is bushing to metal vice the original design of DJM's. I wonder why the upper is different from the lower with regard to contact points (metal to metal and bushing to metal).
Plus if you notice on the upper control arms bushing length the holes pre-drilled in the upper control arms are covered by the longer of the two bushings so if you do not grind down some of the bushing or redrill the hole the metal tube that fit inside the poly bushings will not get lubricated. Just a observation.
(First Note) The upper DJM control arm has one metal tube that fits inside the poly bushings and one side of the bushing set has grooves cut in it so grease can lube the the metal tube and the other poly bushing has no grooves.
The lower control arm has two metal tubes; one tube fits inside the poly bushings and these poly bushings do not have grooves cut in them. A smaller tube fits inside the larger and the smaller tube is longer than the larger. (approx measurement small inner tube 3.2" and the larger that fits snung inside the poly bushings is 3.105"). The DJM instructions say drill a hole in the larger tube so when pumping in grease the grease can get to the smaller tube.
Question:
- With that said, why is the lower control arm allowing metal to metal pivoting (some grease there) and the upper control arm is not?
- I have not pulled my truck apart so maybe someone can let me know if the stock lower control arms designed the same as the DJM or are the stock arms like the upper DJM control arms (metal to bushing).
Why you ask? Well I would rather buy a .880" OD metal tube and drill a .645" hole in it so the lower arm is bushing to metal vice the original design of DJM's. I wonder why the upper is different from the lower with regard to contact points (metal to metal and bushing to metal).
Plus if you notice on the upper control arms bushing length the holes pre-drilled in the upper control arms are covered by the longer of the two bushings so if you do not grind down some of the bushing or redrill the hole the metal tube that fit inside the poly bushings will not get lubricated. Just a observation.
