So I found a couple threads. Showing a bulletin that you should replace the stock wiper arms on any 07-08 for J hook type arms. I'd like to do this so I can buy normal J hook type wiper blades. Anyone know the correct part numbers for J hook arms that will fit an 07?
Here's the bulletin:
Subject:
Windshield Wiper Streak at Low Vehicle Speeds (Replace Windshield Wipers and Arms) #07-08-43-010 - (12/05/2007)
Models: 2007-2008 Cadillac Escalade, Escalade ESV, Escalade EXT
2007-2008 Chevrolet Avalanche, Suburban, Tahoe*
2007-2008
GMC Denali, Denali XL, Yukon,
Yukon XL
*Excludes Tahoe Police Package
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Condition
Some customers may comment that the windshield wipers streak the windshield and do not clean properly at low vehicle speeds.
Cause
This condition may be caused by low blade pressure to the windshield.
Correction
Replace the wiper blades with conventional styled blades. The wiper arms will also have to be replaced.
Open the hood.
Remove the windshield
wiper armfinish cap. Use a small flat-bladed tool to remove the
finish cap.
Remove the wiper arm nut and disconnect the washer hose.
Remove the wiper arm using the J 39637 - Wiper Arm Puller.
Install the wiper to the wiper arm and remove the plastic union from the new assembly.
Install the wiper arm assembly to the vehicle. Line up and hold the blade to the vertical black bar target mark located at the lower center portion of the windshield and tighten the nut.
Tighten
Tighten the nut to 30 N·m (22 lb ft).
Install the windshield
washer hose.
Install the finish cap.
Close the hood.
Parts Information
Part Number
Description
Qty
25879117
Wiper Arm-Left
1
25879116
Wiper Arm-Right
1
15214346
Wiper Blade
2
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
B1784
Arm, Wiper-Windshield (One Or Both) - Replace
Use Published Labor Operation Time