Wife appeals from an order modifying a dissolution decree. The trial court granted husband’s motion to modify because of the United States Supreme Court’s decision that military pension benefits are not community property subject to property division in dissolution cases. McCarty v. McCarty, 453 US 210, 101 S Ct 2728, 69 L Ed 2d 589 (1981). The central question is whether and to what extent McCarty may be applied retroactively to a final decree dividing marital property. We reverse.

At the time of the original decree, husband had a vested, matured military pension and could have retired then and received the benefits. He did not plan to retire, however, until 1988. The original trial court decree awarded husband his military retirement benefits, which would have been $1248 per month had he retired at that time. The decree also awarded wife $620 per month in permanent spousal support, almost exactly one-half husband’s military retirement entitlement at that time.

Both parties appealed. Vinson and Vinson, 48 Or App 283, 616 P2d 1180 (1980). After argument, but before our opinion in that case, we decided that retirement benefits are a marital asset to be considered in formulating financial aspects of dissolution decrees and in appropriate cases be divided in kind as and when received. Rogers and Rogers, 45 Or App 885, 609 P2d 877, modified 47 Or App 963, 615 P2d 412, rev den 289 Or 659 (1980), modified 50 Or App 511, 623 P2d 1108, rev den 290 Or 853 (1981). We modified the property division aspects of the Vinson decree in light of Rogers to award wife half the benefits husband was eligible to receive had he retired at the time of dissolution, or $646 per month less taxes on her half, payable as and when husband receives payment. We also increased her spousal support for three years to allow wife to complete her education, reduced it for two more, and terminated it thereafter, or earlier if wife were to begin to receive her share of the retirement benefits within that five years.

Our decision in Vinson was issued July 25, 1980. Neither party petitioned for review. Our mandate issued *358 November 7, 1980. The trial court entered its order on the mandate December 31, 1980. The decree was final.

Six months later, the Supreme Court decided in McCarty that military pensions are not community property subject to property division in dissolution cases. The Court did not decide that those pensions cannot be considered in making equitable property distributions, but only that the pensions are indivisible property awardable only to the pensioner. The Court noted that the pensions are subject to spousal and child support obligations. Accordingly, contrary to husband’s contention, McCarty does not affect the trial court’s subject matter jurisdiction. Although Oregon is not a community property state, we have found that McCarty applies in Oregon, and remanded several cases pending on appeal when McCarty was decided for reconsideration of both property division and spousal support. See Pearce and Pearce, 53 Or App 521, 632 P2d 501, rev den 292 Or 108 (1981); Hawks and Hawks, 53 Or App 742, 633 P2d 34 (1981). To the extent that we have applied McCarty to cases not final on appeal, we have given it limited retroactive application. We will not go farther and apply it to cases in which the property rights of the parties have been settled by a judgment which became final before the Supreme Court’s opinion in McCarty was handed down. The important considerations why McCarty should not be applied retroactively are well stated in In Re Marriage of Sheldon, 124 Cal App 3d 371, 177 Cal Rptr 380 (1981). 1

*359 The trial court had no statutory authority to modify the property division. See ORS 107.135(l)(a) (power to modify support provision). This was not a default decree subject to relief under former ORS 18.160 2 (repealed Or Laws 1981, ch 898, § 53), which followed FRCP 60(b), or under ORCP 71B or C, which follow the amended FRCP 60(b) and incorporate the equitable power inherent to relieve parties from fraudulent judgments. See Harder v. Harder, 26 Or App 337, 552 P2d 852 (1976). That inherent power is within the court’s discretion but does not arise absent extraordinary circumstances such as fraud. See Ackermann v. United States, 340 US 193, 71 S Ct 209, 95 L Ed 207 (1950) (court found no “extraordinary circumstances” justifying relief under FRCP 60(b) where petitioner made considered choice not to appeal).

*360 The few courts that have considered whether to reopen dissolution decrees that divided military pensions and were final before McCarty are split in favor of limited retroactivity. Compare Erspan v. Badgett, 659 F2d 26 (5th Cir 1981) (1963 Texas decree was res judicata) and In Re Marriage of Sheldon, supra, (McCarty not retroactive) with Ex parte Acree, 623 SW2d 810 (Tex App 1981) (full retroactivity). We have independently reviewed the cases and literature to determine what, if any, rule the Supreme Court would have us follow had it considered the question.

We conclude, as did the court in Erspan, that nothing in McCarty suggests an intent to invalidate prior, valid state court judgments, especially in light of the Supreme Court’s forceful invocation of res judicata only 11 days before McCarty in Federated Department Stores, Inc. v. Moitie, 452 US 394, 101 S Ct 2424, 69 L Ed 2d 103, 109 (1981).

“Nor are the res judicata consequences of a final, unappealed judgment on the merits altered by the fact that the judgment may have been wrong or rested on a legal principle subsequently overruled in another case. [Citations omitted.] As this Court explained in Baltimore Steamship Co. v Phillips, 274 US 316, 325, 71 L Ed 1069, 47 S Ct 600 (1927) an ‘erroneous conclusion’ reached by the court in the first suit does not deprive the defendants in the second action ‘of their right to rely upon the plea of res judicata .... A judgment merely voidable because based upon an erroneous view of the law is not open to collateral attack, but can be corrected only by a direct review and not by bringing another action upon the same cause of action.’ We have observed that ‘the indulgence of a contrary view would result in creating elements of uncertainty and confusion and in undermining the conclusive character of judgments, consequences which it was the very purpose of the doctrine of res judicata to avert.’ Reed v Allen, 286 US 191, 201, 76 L Ed 1054, 52 S Ct 532, 81 ALR 703 (1932).” 3

*361 Here, respondent did not seek direct review beyond this court and now has no direct review available. He did not keep his direct appeal alive until McCarty was decided, as was the situation in both Hawks and Pearce, which we remanded for reconsideration in light of McCarty. Respondent here is attacking a final decree on the merits. To succeed he must avoid res judicata.

The trial court apparently presumed that the McCarty holding was an extraordinary circumstance that allowed the court to exercise its discretion and inherent power to relieve a party from a final judgment. However, in light of Federated Department Stores and Ackerman, such discretion and power may not be exercised as a substitute for an appeal, unless the appellant shows that extraordinary circumstances prevented his appeal. We hold that this rule applies to motions made under ORCP 71B and 71C to overcome the res judicata effect of a final judgment. We also hold that a United States Supreme Court decision that indicates that a prior final judgment of this court was erroneous is not such a circumstance.

Respondent has not alleged or shown fraud or any extraordinary excuse for failure to appeal further. The decree as we had modified it was and is final.

Reversed arid remanded with instructions to reinstate the decree as amended under the previous mandate. Costs to appellant.