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FMC to Hummer H1 Ball-joints/Brake Hose Upgrade | ||
Author: LCAC_Man (Show all albums) This album will list correct H1 ball joint and describe what needs to be done to convert/install them. |
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New H1 b-joint on the left (AC DELCO 45D2222), old driver side upper on the right | old drivers side lower on the left, upper on the right; notice the difference in the upper casting shape | side profile difference of the new H1 compared to the old drivers upper | new H1 installed in the drivers upper position, You must increase the mounting bolts hole diameter from 3/8" to 7/16", it's also important to realize that while the pattern appears to be the same as the original it is slightly off and requires some rotary file clearancing/match drilling to get straight installs of the fasteners. | ||
new H1 temp installed in the drivers lower position, hardware needs to be replaced; rotary file relief for grease zerk (changed to 45dg) required to allow the ball joint to fit up flush in the control arm opening. | New, longer 7/16"x14tpi socket head bolts (2 1/4" long)p/n 91251A678, I could have used 2" long. Also new reduced head size flange nuts p/n 90759A400 (easier to get a socket on in the tight area) These are high strength fasteners I purchased from McMaster Carr. You'll need these or equivalent to allow for the thickness of the lower control arm. | finish install of the new lower ball-joint, you can see that I could have gone with the 2" long fastener vs the 2 1/4" | Both installed and ready for reassembly. This is a commitment to convert to these lower cost, more available ball joints (approx $50 each) you won't be able to use the original configuration after this. | ||
H1 upper ball joint installed/assembled. | H1 lower ball joint installed and assembled. | After seeing Stephen's rear hose reroute and hearing Terry's brake hose casualty I moved this job up on the priority list. | I needed to use 90dg fittings on the rear hoses to clear my air bag structure. After looking at the front hose routing it appeared they'd be helpful there as well. I went ahead and got the 7/16-24 female and 7/16-20 male inverted flare to -3AN adapters at the same time. | ||
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