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Looking for the OEM part number for the front coil spring for a 1970 442 W-30 with AC. Trying to order new front coils and want to get the right ones. Thanks. Greg
I'll do some digging for what I bought. I will tell you when you look at what the spring companies say non make sense. That is, the manifold saves 40 lbs yet the AC adds weight (can't remember how much). Thus it specifies different springs for a W30 than a 442 but doesn't differentiate between AC and non AC or at least it didn't. Yet the 442 springs did. I also went with a front spring 1 inch shorter and back .5 inch shorter
Looking for the OEM part number for the front coil spring for a 1970 442 W-30 with AC. Trying to order new front coils and want to get the right ones. Thanks. Greg
OEM part number is 400997 with A/C, 400333 without.
Let me add that Moog claims that their P/N 5450 replaces both 400333 and 400997 (as well as others), so don't expect to find an exact replacement unless you stumble over an NOS set of OEM parts.
Keep in mind that the Assy Manual and the Parts Book are both snapshots in time. The drawings in the Assy Manual got updated over the course of the production run, and these updates may or may not be captured in the reprint that you have. Same thing with the Parts Book. Part numbers were regularly superceded and there is even a separate part number supercession booklet that documents this. Olds part numbers were pretty much assigned chronologically, so the higher 400997 would be more recent than 400335. I suspect that 400997 is the 1971-72 spring part number and superceded the 1970 vintage 400335. Note that 400335 is more consistent with the other 1970 spring numbers (400333 and 400334). I can't say what the difference might be, but apparently Olds didn't think it mattered enough to keep the original number. If anyone has the Dec 1969 printing of the Parts Book, it would be interesting to see what it shows.
Of course, you still have the problem that the available replacement springs cover just about all of those part numbers interchangeably.
Yes. I see what your saying----maybe just keep old springs, was going to add a 1/2" shim anyway to get a little more height out of them. Did this 25 years ago and it worked nice, gave the car a good stance ------
1970 Olds w/ air cond. 4467-87 pt # 400335 conv.- hardtop
4477 pt# 400334 2 dr. sedan
Is that the Dec 69 printing parts book? If so, then my supercession theory is probably valid. This once again demonstrates the importance of using a parts book that was printed as close to your car's model year as possible.
Well, it gets more murky. These two pages are also from the 1972 printing. 400335 is shown as being used on 1971 Supreme convertibles "with 442 suspension" and no A/C, and also on all 1971 A-body 2dr cars WITH A/C and w/442 suspension.
Well, it gets more murky. These two pages are also from the 1972 printing. 400335 is shown as being used on 1971 Supreme convertibles "with 442 suspension" and no A/C, and also on all 1971 A-body 2dr cars WITH A/C.
Doesn't that make sense since the convertible is heavier and a hardtop with AC would weigh about the same as a convertible without AC. But then the W30 lowers weight a bit.
Doesn't that make sense since the convertible is heavier and a hardtop with AC would weigh about the same as a convertible without AC. But then the W30 lowers weight a bit.
The parts book doesn't differentiate W-30 vs less 442s, only A/C vs. non-A/C.
March 15th, 2017, 06:55 AM
