Date registered: Jan 2006
Vehicle: 73 280SE 4.5, 71 300SEL, 03 BMW Z4, 72 Fiat 850, 80 Triumph TR7, 85 Porsche 911
Location: DC Area
Mentioned: 1 Post(s)
Quoted: 102 Post(s)
I second the notion of getting another opinion. Getting yourself most of the steering system replaced seems nuts to me. In my experience, the steering pump either works or doesn't , or is leaky. If leaky, I'd replace seals before replacing the whole thing. The gearbox either turns the wheels or doesn't, or is leaky. If leaky, replace seals first.
Tranny replacement costs are huge - I took mine to Aamco and had everything done for a little more than $2000. Same tranny as yours.
I'd especially get a 2nd opinion for the subframe mounts.
Let me dispell you of any possible misconceptions about the rarity of parts or knowledge for our cars. Though they're no longer made and are coming on 40 years old, parts are plentiful. Do general searches in this forum and on the internet for providors. Knowledge isn't scarce either, nor are the manuals. There's an "online resources" portion of this forum with a ton of articles, repair articles, parts lists and more, covering our cars, W112's, W109's, and others. If nothing else, when taking it to a mechanic, you'll be forarmed with knowledge...